Category Archives: News

Singapore, 17 May 2022 – The second fortnight of May 2022 is forecast to be warm and drier compared to the first half of the month. The daily maximum temperatures are expected to range between 34 and 35 degrees Celsius on most days and could reach a high of around 36 degrees Celsius on a few days. Warm and humid conditions are also expected on a few nights, with temperatures hovering around 28 degrees Celsius.

2      The Southwest Monsoon season is expected to set in during the coming fortnight, with the winds gradually strengthening and blowing mainly from the southeast or southwest. The Southwest Monsoon season typically extends into September and is a drier period compared to other times of the year.

3       In the second fortnight of May 2022, generally fair and warm weather can be expected on most days due to stable atmospheric conditions, the presence of dry air over Singapore and the surrounding equatorial Southeast Asia region and the influence of a dry phase of the Madden-Julian Oscillation (MJO) [1]. On some days in the fortnight, localised short-duration showers, at times with thunder, are expected over a few parts of the island in the late morning and early afternoon. In addition, island-wide thundery showers with occasional gusty winds, due to Sumatra squalls, can be expected in the morning on one or two days. With below-average rainfall to be expected for the second fortnight, the overall rainfall for May 2022 is expected to be below- to near-average over most parts of Singapore.

4      With drier weather expected in the coming fortnight, warm conditions are forecast on most days for the rest of May 2022. The daily maximum temperatures are expected to range between 34 and 35 degrees Celsius on most days and could reach a high of around 36 degrees Celsius on a few days. Warm nights can be expected with night-time temperatures of up to 28 degrees Celsius on a few days, mostly over the southern and eastern coastal areas of the island, when prevailing winds blowing from the east or southeast bring in warm and humid air from the seas.

5      For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 16 May 2022)

 6       Inter-monsoon conditions prevailed over Singapore and the surrounding region in the first half of May 2022, with the prevailing winds generally light and blowing from the east or southeast. On some days, the prevailing winds shifted to blow from the southwest..

7        On several days in the first fortnight of May 2022, the presence of low-pressure systems over the surrounding sea areas widespread thundery showers and gusty winds to Singapore between the early hours and morning. On 4 May 2022, heavy thundery showers from a Sumatra squall fell over many parts of Singapore in the predawn and early morning. The daily total rainfall of 89.2mm recorded at Tuas South that day was the highest daily total for the first half of May 2022.

8       Although it rained on most days during the first half of the month, there were still several warm days. There were eight days where maximum temperatures of 34 degrees Celsius or more were recorded. The highest daily maximum temperature of 36.7 degrees Celsius was recorded at Admiralty on 13 May 2022. This is the highest temperature ever recorded in Singapore in May, surpassing the previous record high of 36.5 degrees Celsius on 16 May 2010 and 3 May 2016.

9      About two-third of Singapore experienced above-average rainfall during the first fortnight of May 2022. The rainfall recorded at Admiralty was 138 percent above-average while that recorded over the eastern part of Singapore at Changi was 73 percent below-average.

[1] The Madden-Julian Oscillation (MJO) is characterised by an eastward propagation of clouds and rainfall over the tropical regions from the Indian Ocean to the western Pacific Ocean.

CLIMATE STATION STATISTICS

Long-term Statistics for May
(Climatological reference period: 1991 – 2020)

Historical Extremes for May
(Rainfall since 1869 and temperature since 1929)

Singapore, 29 Apr 2022 – The wet and warm weather experienced in April 2022 is forecast to continue into the first fortnight of May 2022. With the presence of the monsoon rain band close to the equatorial Southeast Asia region, thundery showers are expected on most days in the first fortnight of May 2022.

2        The prevailing inter-monsoon conditions over Singapore are expected to persist into May 2022. In the first half of the month, the low-level winds are forecast to be light and variable in direction but may strengthen to blow from the southwest or west on some days.

3        In the first fortnight of May 2022, short-duration moderate to heavy thundery showers with frequent lightning are expected over parts of the island between the afternoon and evening on some days. On several days in the early part of the fortnight, the presence of low-pressure systems over the South China Sea may bring a shift in the low-level winds to blow from the southwest or west. This could induce the development of Sumatra squalls in the Strait of Malacca and bring widespread thundery showers with gusty winds over Singapore during the pre-dawn hours and morning. Overall, the rainfall for May 2022 is expected to be near-normal over most parts of Singapore.

4        The warm conditions experienced in the last fortnight of April 2022 are forecast to persist into the first fortnight of May 2022. The daily temperature is expected to range between 24 and 34 degrees Celsius on most days and could reach 35 degrees Celsius on a few days. On some rainy days, the daily minimum temperature may drop to a low of around 23 degrees Celsius.

5          For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 28 April 2022)

 6        In April 2022, inter-monsoon conditions prevailed over Singapore and the surrounding region with the prevailing winds generally light and variable in direction. Under the influence of a few tropical storms over the Western Pacific Ocean, the winds strengthened and blew from the southwest or west on some days.

7        There were more showers in the second half of April 2022 compared to the first half of the month. In the first half of April 2022, localised and short-duration thundery showers fell over parts of the island mainly in the late morning and afternoon on some days. On most days in the second half of April 2022, thundery showers fell in the afternoon over most parts of the island due to strong daytime heating of land areas. There were also a few days when thundery showers fell during the night and in the pre-dawn hours. On 17 April 2022, large-scale convergence of winds in the surrounding region brought several spells of thundery showers which started in the afternoon and extended into the evening and night. The daily total rainfall of 91.1mm recorded at Seng Kang that day was the highest rainfall recorded for April 2022.

8        It was generally warm in April 2022. The daily maximum temperature was above 34 degrees Celsius on 13 days. On seven of these days, the daily maximum temperature was at least 35.0 degrees Celsius, with the highest temperature of 36.8 degrees Celsius recorded at Admiralty on 1 April 2022. The lowest minimum temperature was 22.2 degrees Celsius recorded at Sembawang on 9 April 2022.

9        About half of the island recorded above-normal rainfall in April 2022. The rainfall recorded at Sentosa was 78 percent above average. The rainfall at Jurong West was 57 percent below average.

CLIMATE STATION STATISTICS

Long-term Statistics for May
(Climatological reference period: 1991 – 2020)

Historical Extremes for May
(Rainfall since 1869 and temperature since 1929)

Singapore, 14 Apr 2022 – The prevailing inter-monsoon conditions over Singapore and the surrounding region are expected to persist through May 2022. In the coming fortnight, the prevailing winds are forecast to be generally light and variable and occasionally blow from the southwest or west.

2          In the early part of the coming fortnight, the convergence of prevailing winds from the southwest or west may lead to the development of Sumatra squalls over the Strait of Malacca. As the squalls move eastwards toward the South China Sea, they may bring widespread thundery showers and gusty winds over Singapore during the pre-dawn hours and morning on a few days.

3          Short-duration moderate to heavy thundery showers with frequent lightning are expected over parts of the island in the afternoon on most days. On a few of these days, the thundery showers may be intense, and could extend into the early evening. The rainfall for April 2022 is expected to be below average over most parts of Singapore.

4          For the rest of April 2022, warm weather can still be expected. The daily maximum temperatures are expected to be around 34 degrees Celsius on most days. On one or two rainy days, the daily minimum temperature may drop to a low of around 23 degrees Celsius.

5          For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 13 April 2022)

 6          Inter-monsoon conditions prevailed over Singapore and the surrounding region in the first half of April 2022. The prevailing winds were generally light and blew mainly from the southwest or northwest.

7          In the first half of April 2022, thundery showers fell over parts of the island mainly in the late morning and afternoon. These showers were mostly localised and of short-duration. The highest daily total rainfall of 70.2mm was recorded at Punggol on 6 April 2022. The passage of Sumatra squalls also brought showers and strong winds to the coastal areas of western Singapore between the early hours and morning on a few days. The highest wind gust of 67km/h was recorded at Pasir Panjang on 9 April 2022.

8          In the first fortnight of April 2022, there were five days when the daily maximum temperature reached 34 degrees Celsius or more. In particular, the daily maximum temperatures soared to 36.8 degrees Celsius and 35.4 degrees Celsius at Admiralty and Ang Mo Kio respectively under clear sky conditions. The lowest minimum temperature was 22.2 degrees Celsius recorded at Admiralty on 9 April 2022.

9          The rainfall was well below average over many parts of Singapore in the first half of April 2022. The rainfall recorded at Punggol was 22 per cent above average. The rainfall at Jurong West was 87 per cent below average.

CLIMATE STATION STATISTICS

Long-term Statistics for April
(Climatological reference period: 1991 – 2020)

Historical Extremes for April
(Rainfall since 1869 and temperature since 1929)

Singapore, 1 Apr 2022 – Inter-monsoon conditions with warm weather and afternoon thundery showers are expected to continue into the first fortnight of April 2022. The monsoon rain band is forecast to lie close to the equatorial region and bring more showers to Singapore.

2    During the inter-monsoon period, the prevailing winds are typically light and variable in direction. Warm weather with moderate to heavy thundery showers commonly occur in the afternoon. Climatologically, April is one of the warmest months of the year, with a high incidence of lightning activity.

3    In the first half of April 2022, short-duration thundery showers are expected in the afternoon and evening on most days due to strong solar heating of land areas. On some days, the thundery showers may be intense, due to the convergence of prevailing winds around Singapore. On a few days when prevailing winds shift to blow from the west, the eastward passage of Sumatra squalls from Sumatra or the Strait of Malacca could bring widespread thundery showers with gusty winds over Singapore in the morning. Overall, the rainfall for April 2022 is expected to be near average over most parts of Singapore.

4    Warm conditions are expected in the coming fortnight. The daily temperature is forecast to range between 24^oC and 34^oC on most days. The daily maximum temperature may reach 35^oC or higher on days with less clouds in the sky.

5      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 31 March 2022)

6     Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of March 2022, with the low-level winds generally blowing from the northwest or northeast.   With the weakening of the winds in the second half of the month, inter-monsoon conditions were observed to prevail. On a few days during this time, the winds blew from the west.

7     In March 2022, thundery showers fell over the island mainly in the afternoon and evening. There were also thundery showers in the pre-dawn hours and morning on a few days. On 7 March 2022, strong solar heating of land areas coupled with convergence of winds over Singapore triggered moderate to heavy thundery showers in the afternoon. The heaviest rainfall was over the southern and western parts of Singapore. The daily total rainfall of 134.2 mm registered at Jurong West, was the highest daily total rainfall for March 2022. This was ranked the second wettest day recorded in March in the past 10 years. The highest daily rainfall in the past 10 years was 151.5 mm recorded at Jurong West on 23 March 2021.

8     March 2022 was a warm month. Strong solar heating of land areas coupled with light wind conditions resulted in warm temperatures on most days. Out of the 19 days when the daily maximum temperature reached 34^oC or more, there were 7 days where temperature soared to 35^oC or higher. On 19 March 2022, the highest daily maximum temperature of 36.2^oC was recorded at Ang Mo Kio. The daily minimum temperature dipped to a low of 21.8 ^oC at Pulau Ubin on 21 March 2022 and at Admiralty on 31 March 2022.

9     Many parts of Singapore received above average rainfall in March 2022. The rainfall recorded at Yio Chu Kang was 109 per cent above average. The rainfall at Tuas was 42 per cent below average.

CLIMATE STATION STATISTICS

Long-term Statistics for April
(Climatological reference period: 1991 – 2020)

Historical Extremes for April
(Rainfall since 1869 and temperature since 1929)

Singapore, 16 Mar 2022 – The weather for the rest of March 2022 is expected to continue to be wet. The prevailing Northeast Monsoon conditions, with low-level winds blowing from the northeast or northwest, are forecast to gradually weaken. The shift in wind conditions signals the end of the Northeast Monsoon and the start of the inter-monsoon period.

2    The inter-monsoon period is characterised by light variable winds, warm weather and thunderstorms that can at times be heavy.  Lightning activity tends to be higher during the inter-monsoon months than other months of the year. The inter-monsoon period is forecast to last through April 2022.

3    In the coming fortnight, the winds are expected to be mostly light and variable, but may blow from the southwest or west on several days. The monsoon rain belt is expected to lie over the equatorial Southeast Asia region. On several days during this period, Sumatra squalls from the Strait of Malacca may bring widespread moderate to heavy thundery showers with occasional gusty winds over Singapore in the early or pre-dawn hours, as they move eastward toward the South China Sea. On other days, short-duration moderate to heavy thundery showers are expected over parts of the island in the afternoon.  For a few of these days, when there is strong convergence of winds in the surrounding vicinity, the thundery showers could extend into the evening. Overall, the rainfall for March 2022 is expected to be above-average over most parts of Singapore.

4    While wet weather can be expected in the coming fortnight, the daily maximum temperature could still reach a high of around 35°C on one or two days. On most days, the daily temperature is forecast to range between 24°C and 34°C. In addition, the Sumatra squalls may bring cooler daily temperatures of between 23°C and 32°C on a few days.

5      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 15 March 2022)

6    The Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of March 2022. The prevailing low-level winds blew mainly from the northwest or northeast, and from the east on a few days.

7    During the first two weeks of March 2022, thundery showers fell over parts of the island in the afternoon and evening on most days. On the afternoon of 7 March 2022, large-scale convergence of winds over Singapore and the surrounding region led to the development of moderate to heavy thundery showers over many areas of the island.  The showers were particularly intense over the southern and western parts of Singapore. The daily total rainfall of 134.2 mm recorded at Jurong West was the highest daily total rainfall recorded in the first half of March 2022.

8    Although it rained across the island on most days, there were seven days when maximum temperatures of 34°C or more were recorded in the past two weeks. The highest daily maximum temperature of 36.0°C was recorded at Paya Lebar on 13 March 2022. The lowest daily minimum temperature was 22.1°C recorded at Admiralty and Jurong on 2 and 10 March 2022.

9    Many parts of Singapore recorded above-average rainfall in the first fortnight of March 2022. The rainfall recorded at Jurong West was 173% above-average while that recorded at Tuas West was 52% below-average.

CLIMATE STATION STATISTICS

Long-term Statistics for March
(Climatological reference period: 1991 – 2020)

Historical Extremes for March
(Rainfall since 1869 and temperature since 1929)

Singapore, 1 Mar 2022 – The wet weather in February 2022 is forecast to continue into the first half of March 2022. With the monsoon rain band likely to remain over the equatorial Southeast Asia region, thundery showers can be expected on most days in the first fortnight of March 2022.

2  The prevailing Northeast Monsoon season over Singapore is forecast to persist into the first half of March 2022 with prevailing winds blowing from the north or northeast on most days. The winds may blow from the southwest or west on a few days.

3  On most days in the first fortnight of March 2022, short-duration thundery showers are expected over parts of the island in the afternoon, extending into the evening on a few days. This is due to strong daytime heating of land areas and the convergence of winds over Singapore and the surrounding vicinity. On some of these days, large-scale convergence of winds over Singapore and the surrounding region may trigger widespread and heavy thundery showers over the island.

4  In addition, convergence of low-level winds blowing from the southwest and west may trigger the development of umatra squalls over the Strait of Malacca on a few days in the first half of March 2022. The eastward passage of the squalls toward the South China Sea may bring widespread thundery showers and gusty winds over Singapore between the predawn hours and morning. Overall, the rainfall in the first half of March 2022 is expected to be above average over most parts of Singapore.

5  While showers are expected in the coming fortnight, the daily maximum temperature could still reach a high of around 34°C on some days. On most days, the daily temperature is forecast to range between 24°C and 33°C.

6      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 28 February 2022)

7    The Northeast Monsoon conditions prevailed over Singapore and the surrounding region in February 2022. The prevailing low-level winds blew mainly from the northwest or northeast, and from the east on a few days

8    During February 2022, thundery showers fell over parts of the island in the afternoon and evening on most days. On 27 February 2022, large-scale convergence of winds over Singapore and the surrounding region led to the development of moderate to heavy thundery showers over many areas of the island.  The showers were particularly intense over the northern and eastern parts of Singapore. The daily total rainfall recorded that day was 142.0 mm at Tai Seng. This was the highest daily total rainfall recorded in February 2022.

9    While it rained across the island on most days of the month, there were still several days of warm weather. Singapore’s daily maximum temperature in February 2022 ranged from 26.8°C to 35.1°C. The highest daily maximum temperature of 35.1°C was recorded at Newton and Sentosa on 20 and 21 February 2022 respectively. The lowest daily maximum temperature of 26.8°C was recorded on 10 February 2022 during a two-day period when occasional spells of rain with cloudy skies brought cool conditions to Singapore.

10      Singapore received above average rainfall in February 2022. The highest anomaly of 161% above average was recorded at Paya Lebar. The anomaly was lowest at MacRitchie at 1% above average.

CLIMATE STATION STATISTICS

Long-term Statistics for March
(Climatological reference period: 1991 – 2020)

Historical Extremes for March
(Rainfall since 1869 and temperature since 1929)

Singapore, 16 February 2022 – The generally wet weather experienced in the first fortnight of February 2022 is expected to continue into the second half of the month, with the prevailing winds blowing from the northwest or northeast.

2    During the second half of February 2022, the monsoon rain band is forecast to lie over the equatorial Southeast Asia region and continue to bring showers to Singapore and the surrounding vicinity. Short-duration thundery showers can be expected in the afternoon on most days, extending into the evening on some occasions. On one or two days, the presence of a mass of dry air over the surrounding South China Sea may bring stable atmospheric conditions and generally fair and warm weather to Singapore.

3    In the latter half of the fortnight, the prevailing winds from the northeast are forecast to strengthen. On some days during this period, large-scale convergence of winds over Singapore and the surrounding region may trigger widespread and heavy thundery showers over the island. Overall, the rainfall for February 2022 is forecast to be above-average over most parts of the island.

4    For the rest of February 2022, the daily temperature is forecast to range between 24°C and 33°C on most days. On days with less cloud cover, the maximum temperature may reach around 34°C.

5      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 15 February 2022)

6    Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of February 2022. The prevailing low-level winds blew mainly from the northwest or northeast, and from the east on a few days.

7      During the first fortnight of February 2022, thundery showers fell over parts of the island in the late afternoon and evening on most days. There were also occasional showers during the night on one or two days. On 12 February 2022, strong solar heating of land areas coupled with convergence of prevailing winds with the sea breeze led to the development of moderate to heavy thundery showers over western and southern Singapore. A total of 70mm of rainfall was recorded at Jurong West that day. This was the highest daily rainfall recorded in the first half of February 2022.

8      Between 10 – 11 February 2022, the convergence of low-level winds from the northeast brought occasional spells of rain with cloudy skies and cool conditions to Singapore and the surrounding region. On 10 February 2022, the highest maximum temperature was only 26.8°C, recorded at Sentosa. On 11 February 2022, the minimum temperature dropped to a low of 22.3°C at Pulau Ubin. This was the lowest minimum temperature recorded in the first half of February 2022. The highest daily maximum temperature of 34.2°C was recorded on 4 February 2022 at Paya Lebar.

9      Above-average rainfall was recorded over most parts of the island in the first half of February 2022. The highest anomaly of 200% above-average was recorded at Sentosa. The rainfall recorded at Ang Mo Kio was 15% below-average.

CLIMATE STATION STATISTICS

Long-term Statistics for February
(Climatological reference period: 1991 – 2020)

Historical Extremes for February
(Rainfall since 1869 and temperature since 1929)

Singapore, 31 January 2022 – With the monsoon rain band forecast to lie closer to the equatorial Southeast Asia region, more thundery showers can be expected in the first fortnight of February 2022, compared to the second fortnight of January 2022. The prevailing Northeast Monsoon conditions are expected to persist in the first half of February 2022, with low-level winds blowing from the northwest or northeast.

2     On the first few days of the forecast period, a mass of dry air over the equatorial Southeast Asia region may bring stable atmospheric conditions and generally fair and warm weather over most parts of Singapore. Thereafter, the monsoon rain band is forecast to migrate closer to the Equator. Thundery showers may be expected over parts of the island in the afternoon on most days with the showers extending into the evening on a few of these days. On a few days during the fortnight, widespread moderate to heavy thundery showers induced by large-scale convergence of winds over Singapore and the surrounding region may also be expected. Overall, the rainfall for the first half of February 2022 is forecast to be above-average over most parts of the island.

3      While more showers are expected in the first fortnight of February, the daily maximum temperature could still reach a high of around 34^oC on a few days. On most days, the daily temperature is forecast to range between 24^oC and 33^oC.

4      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 30 January 2022)

5      Northeast Monsoon conditions prevailed over Singapore and the surrounding region in January 2022. The prevailing low-level winds blew from the north or northeast.

6       A high-pressure system over northern continental Asia brought a surge of moderate to strong northeast monsoon winds (monsoon surge ) over the equatorial South China Sea region in the first few days of 2022. The surge brought cool and wet weather over Singapore between 31 December 2021 and 2 January 2022. On 2 January 2022, widespread and continuous moderate rain fell over the island between the pre-dawn hours and afternoon. A total of 101.2mm of rainfall was recorded at Lower Peirce Reservoir on that day. This is the highest daily total rainfall for January 2022. After a wet start to the new year of 2022, it was dry and warm on most days with a few days of short-duration showers. There were also occasionally windy conditions on several days.

7       The daily temperature in January 2022 ranged from 22.5^oC to 35.4^oC. The highest daily maximum temperature of 35.4^oC was recorded on 29 January 2022 at Newton. The minimum temperature of 22.5^oC, recorded at Pasir Panjang on 20 January, was the lowest temperature recorded in January 2022.

8       Most parts of the island recorded below-average rainfall in January 2022. The highest anomaly of 57% below-average was recorded at Simei. The rainfall recorded at Ang Mo Kio was 12% above-average.

CLIMATE STATION STATISTICS

Long-term Statistics for February
(Climatological reference period: 1991 – 2020)

Historical Extremes for February
(Rainfall since 1869 and temperature since 1929)

Singapore, 17 January 2022 – The prevailing Northeast Monsoon season is expected to continue through January 2022, with the low-level winds blowing from the north or northeast. Generally dry conditions are expected for the second fortnight of January, although short-duration thundery showers can be expected over parts of the island on one or two days.

2      During the fortnight, the monsoon rain band is forecast to be located to the south of the equatorial Southeast Asia region. The presence of a dry air mass in the surrounding vicinity of Singapore will bring relatively fair weather on most days, except for occasional passing showers in the afternoon. Windy conditions can be expected in the first week of the fortnight. On one or two days, there may be short-duration thundery showers over parts of the island in the afternoon and evening due to convergence of prevailing winds with the sea breeze. Overall, the rainfall for January 2022 is expected to be below-average over most parts of the island.

3      In the second half of January 2022, the daily temperature is forecast to range between 24^oC and 33^oC on most days. On days with lighter winds, the daily maximum temperature may be higher, and reach around 34^oC.

4      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 16 January 2022)

5      Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of January 2022. The low-level winds blew from the north or northeast.

6      Between 31 December 2021 and 2 January 2022, a surge of moderate to strong northeast winds over the South China Sea brought cool and wet weather over Singapore. On 2 January 2022, widespread and continuous moderate rain fell over the island between the pre-dawn hours and afternoon. A total of 101.2mm of rainfall was recorded at Lower Peirce Reservoir. The minimum temperature of 22.8^oC, recorded at Clementi that day, was the lowest minimum temperature recorded in the first fortnight of January 2022.

7       After a wet start to the new year of 2022, the second week of January 2022 was generally fair, with brief periods of afternoon passing showers. There were also occasionally windy conditions on several days. The highest maximum temperature of 34.5^oC was recorded at Sentosa on 13 January 2022.

8       The rainfall in the first half of January 2022 was below-average over most parts of the island, except for northern and central Singapore, where rainfall was above-average. The highest anomaly of 82% above average was recorded at Ang Mo Kio. The anomaly of 34% below average was recorded at Chai Chee.

CLIMATE STATION STATISTICS

Long-term Statistics for January
(Climatological reference period: 1991 – 2020)

Historical Extremes for January
(Rainfall since 1869 and temperature since 1929)

Singapore, 31 December 2021 – The prevailing Northeast Monsoon conditions in the region are forecast to persist into January 2022, with low-level winds blowing from the northwest or northeast. At the start of the new year, a high-pressure system over the northern Asian continent is expected to strengthen and bring wetter and cooler conditions to the region.

2    The strengthening of the high-pressure system is expected to bring a surge of strong north-easterly winds (or monsoon surge ) over the South China Sea. The surge will last for a few days and will likely bring cooler conditions with occasional spells of moderate to heavy thundery showers over Singapore and the surrounding vicinity. Thereafter, localised thundery showers are forecast in the afternoon. The rainy weather is likely to ease in the second week of the fortnight. Localised short-duration thundery showers can still be expected in the afternoon on several days, and warm and occasionally windy conditions with passing showers on a few days. Overall, the rainfall for the first half of January 2022 is expected to be slightly above average over most parts of the island.

3    The rainy weather in early January 2022 is likely to result in lower daily temperatures of between 23 °C and 31 °C on a few days. For the rest of the fortnight, the daily temperatures are forecast to range between 24°C and 33°C. The daily maximum temperature may still reach a high of up to 34oC on a few days.

4      For updates of the daily weather forecast, please visit our MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW (1 – 30 December 2021)

5    In December 2021, Northeast Monsoon conditions prevailed over Singapore and the surrounding region. During this period, the low-level winds blew from the northwest or northeast.

6    While December is climatologically a wetter month than November, December 2021 was drier compared to November 2021. The Northeast Monsoon brought relatively windy conditions with passing showers to Singapore and the surrounding region on most days in the first half of the month. Short-duration thundery showers fell over parts of the island in the afternoon on most days in the second half of December 2021. On a few days, large-scale convergence of winds over Singapore and the surrounding vicinity brought widespread moderate to heavy thundery showers. On the night of 18 December 2021, intense thundery showers fell over many parts of the island. The daily total rainfall recorded that day was 82.6 mm around the Pulau Ubin area. This was the highest total rainfall in a day for December 2021.

7    The daily temperature in December 2021 ranged between 22.1oC and 34.8oC. The highest daily maximum temperature of 34.8 °C was recorded on 1 December at Tengah. On 2 December 2021, the passage of a Sumatra squall brought rainy weather and cloudy skies to Singapore, and the minimum temperature at Jurong dropped to a low of 22.1°C.

8    At the Changi climate station, the daily maximum temperature of 33.9°C recorded on 1 December 2021 was the highest daily maximum temperature ever recorded at our climate station in December. The mean monthly temperature of 27.7°C (as of 30 Dec 2021) was 0.9°C warmer than the long-term December mean temperature.

9 Singapore received below-average rainfall in December 2021. The highest anomaly of 71% below average was recorded at Seletar. The lowest anomaly of 7% below average was at Jurong Pier.

CLIMATE STATION STATISTICS

Long-term Statistics for January
(Climatological reference period: 1991 – 2020)

Historical Extremes for January
(Rainfall since 1869 and temperature since 1929)