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Singapore, 16 June 2023 – More warm days are expected for the rest of June 2023 compared to the first half of the month. In the coming fortnight, daily maximum temperatures of about 34 degrees Celsius are expected on most days and could reach a high of around 35 degrees Celsius on a few days. Warm and humid conditions are also expected on some nights, with temperatures hovering around 29 degrees Celsius. With the prevailing Southwest Monsoon expected to persist in the second half of June 2023, the low-level winds over Singapore will mostly blow from the southeast or southwest.

2    The second half of June 2023 is expected to be drier than the first half of the month. The presence of a dry air mass may bring relatively fair and warm weather to Singapore on a few days in the coming fortnight. Localised short-duration thundery showers may still occur in the afternoon over parts of the island on some days when there is convergence of prevailing winds with the sea breeze. Widespread thundery showers with gusty winds, due to Sumatra squalls, are forecast between the pre-dawn hours and morning on one or two days. On the whole, we expect below average rainfall in the second half of June 2023. For the month of June, the total rainfall is expected to be near average over most parts of the island.

3    More warm days are expected in the coming fortnight compared to the first half of the month. During the second half of June 2023, the daily maximum temperature is forecast to be around 34 degrees Celsius on most days. On a few days when there is less cloud cover, the daily maximum temperature could reach a high of around 35 degrees Celsius. Warm and humid conditions can also be expected on some nights when prevailing winds from the southeast or south blow warm and humid air from the sea to Singapore. On these nights, minimum night-time temperatures of up to 29 degrees Celsius can be expected, particularly over the south-eastern parts of the island.

4     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 – 15 June 2023)

5     In the first half of June 2023, the light and variable winds over Singapore and the surrounding region strengthened to blow from the southeast or southwest, as the Southwest Monsoon season set in over the region.

6    On several days during the first fortnight of June 2023, the presence of low-pressure systems over the surrounding sea areas led to the development of Sumatra squalls. This passage of Sumatra squalls brought thundery showers to Singapore between the pre-dawn hours and morning. On 4 June 2023, widespread thundery showers from a Sumatra squall fell over many parts of Singapore in the late morning and early afternoon. The daily total rainfall of 96.2mm recorded at Toa Payoh that day was the highest daily rainfall for the first half of June 2023.

7    The first half of June 2023 was not as warm compared to May 2023 where maximum temperatures of above 35 degrees Celsius were recorded on some days. In the first two weeks of June 2023, there were three days where the daily maximum temperature was above 34 degrees Celsius. The highest daily maximum temperature of 34.7 degrees Celsius was recorded at Pulau Ubin on 2 June 2023. There were also a few warm nights, particularly over the southern and eastern parts of the island where the minimum night-time temperatures ranged between 28 degrees Celsius and 29 degrees Celsius. The warm nights were due to prevailing winds blowing from the southeast bringing warm, humid air from the sea over the land.

8    In the first fortnight of June 2023, rainfall was above average over most parts of Singapore. Seng Kang recorded rainfall of 114 per cent above average, and Mandai recorded rainfall of 58 per cent below average.

CLIMATE STATION STATISTICS

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

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

Singapore, 16 May 2023 – More showers are expected for the rest of May 2023 compared to the first half of the month. The rain is expected to bring some respite to the hot weather experienced in the first half of May 2023. In the coming fortnight, the daily maximum temperatures are expected to range between 33 degrees Celsius and 34 degrees Celsius on most days, and could reach a high of around 35 degrees Celsius on a few days. Some warm nights may also be expected. The inter-monsoon conditions prevailing over Singapore and the surrounding region are expected to persist, with the low-level winds mostly light and variable in direction and blowing from the southeast or southwest on some days.

2      In the second fortnight of May 2023, Sumatra squalls may bring widespread thundery showers accompanied by gusty winds between the pre-dawn hours and morning on several days. In addition, localised short-duration thundery showers can be expected over parts of the island between the afternoon and evening on some days. Overall, near-to-above average rainfall is expected for the second half of May 2023, and the total rainfall for the month is likely be near average over most parts of the island.

3       With showers expected on most days, the temperatures are not likely to be as high as that experienced in the first fortnight of the month.  Daily maximum temperatures are likely to range between 33 degrees Celsius and 34 degrees Celsius on most days and could reach a high of around 35 degrees Celsius on a few days. Warm and humid conditions can also be expected on some nights when the prevailing winds from the southeast or south blow warm and humid air from the sea to Singapore. On these nights, minimum temperatures may reach 28 degrees Celsius, particularly over the southern and eastern coastal areas of the island.

4       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 – 15 May 2023)

5       Inter-monsoon conditions prevailed in the first half of May 2023 with the prevailing winds generally light and variable in direction.

6       In the first week of May 2023, localised and short-duration thundery showers fell over parts of the island mainly in the afternoon on most days. On 4 May 2023, strong solar heating of land areas coupled with localised convergence of winds led to the development of thundery showers over most parts of Singapore in the afternoon. The daily total rainfall of 113.2 mm recorded at Paya Lebar that day was the highest rainfall recorded for the first half of May 2023. Most days in the second week of May 2023 were dry.

7       The first two weeks of May 2023 were warm, with maximum temperatures above 34 degrees Celsius on most days, and eight days registering temperatures of 35 degrees Celsius or higher.  On 13 May 2023, light winds, dry and clear sky conditions resulted in high temperatures across many parts of Singapore. Several locations recorded temperatures exceeding 36 degrees Celsius, with the highest temperature of 37.0 degrees Celsius, the year’s warmest so far, measured at Ang Mo Kio.  This temperature reading also ties with the record for highest daily maximum temperature in Singapore (last recorded at Tengah on 17 April 1983) since temperature records started in 1929. It is also the highest daily maximum temperature for the month of May, exceeding the previous May high of 36.7 degrees Celsius observed at Admiralty just last year.

8         Most parts of Singapore recorded well below average rainfall in the first half of May 2023. The highest anomaly of 77 per cent above average was recorded at Paya Lebar. The anomaly was lowest around the Simei area at 84 per cent 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, 2 May 2023 – The warm and humid weather experienced in April 2023 is expected to continue into the first half of May 2023. The inter-monsoon conditions prevailing over Singapore and the surrounding region are expected to persist, with the low-level winds mostly light and variable in direction, and blowing from the southeast or southwest on some days.

2      Short-duration thundery showers are expected over parts of the island in the afternoon on most days due to strong daytime heating of land areas. The showers could extend into the evening on one to two days. The temporary shifts in the winds to blow from the southwest in the first week of the fortnight could bring a few days of widespread thundery showers and gusty winds in the pre-dawn and morning. Overall, near average rainfall is forecast over most parts of the island for the first fortnight of May 2023.

3       May is normally one of the warmest months of the year. The first half of May 2023 is forecast to be warm and humid, with daily maximum temperatures reaching 34 degrees Celsius on most afternoons. On a few days when there is less cloud cover, the daily maximum temperature could reach a high of around 35 degrees Celsius.

4       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 – 30 April 2023)

5      In April 2023, inter-monsoon conditions prevailed over Singapore and the surrounding region with the low-level winds generally light and variable in direction.

6      During this period, thundery showers affected parts of the island on most afternoons due to strong solar heating of land areas. The showers extended into the evening on some occasions. On a few mornings, showers also fell over parts of Singapore. On 20 April 2023, a Sumatra squall brought heavy thundery showers and gusty winds over parts of the island in the morning. The rain was heaviest over the western and southern parts of Singapore. The daily total rainfall of 112.1mm recorded at Jurong West that day was the highest rainfall for April 2023.

7      It was generally warm in April 2023. The daily maximum temperature was above 34 degrees Celsius on most days, with nine days registering temperatures of 35 degrees Celsius or more. The highest daily maximum temperature was 36.1 degrees Celsius, recorded at Woodlands on 14 April 2023.

8       Most parts of Singapore recorded below average rainfall in April 2023. The highest anomaly of 36 per cent above average was recorded at Changi. The anomaly was lowest around the Somerset area at 40 per cent 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, 17 April 2023 – The inter-monsoon conditions prevailing over Singapore and the surrounding region are expected to continue in the second half of April 2023. The low-level winds are forecast to be light and variable in direction on most days.

2       Short-duration thundery showers are expected over parts of the island in the afternoon on most days due to strong daytime heating of land areas. The showers could extend into the evening on a few days. On one to two days in the first week of the fortnight, Sumatra squalls may develop over the Strait of Malacca and move eastwards towards Singapore bringing widespread thundery showers and gusty winds in the pre-dawn and morning. Overall, near average rainfall can be expected for the second half of April 2023 and the total rainfall for the month is likely be below average over most parts of the island.

3       For the rest of April 2023, it is expected to be warm. While wet weather is forecast, the daily maximum temperature may reach 34 degrees Celsius in the afternoon on most days. On some days when there is less cloud cover, the daily maximum temperature could reach a high of around 35 degrees Celsius.

4       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 April 2023)

5      The Northeast Monsoon gradually came to an end in early April 2023. Following this, the low-level winds became light and variable in direction.

6      In the first fortnight of April 2023, thundery showers developed over parts of the island on most days due to strong solar heating of land areas. The showers extended into the evening on a few occasions. On a few mornings, showers also affected parts of Singapore. On 1 April 2023, large-scale convergence of winds in the surrounding region brought heavy thundery showers over parts of the island in the afternoon and evening. The rain was heaviest over the eastern part of Singapore around the Changi area, where 90.4mm of rainfall was recorded. That was the highest daily total rainfall for the first fortnight of April 2023.

7      It was generally warm in the first half of April 2023. The daily maximum temperature was above 34 degrees Celsius on most days, with four days registering temperatures of 35 degrees Celsius or more. The highest daily maximum temperature was 36.1 degrees Celsius, recorded at Woodlands on 14 April 2023.

8      Most parts of Singapore recorded below average rainfall in the first fortnight of April 2023. The highest anomaly of 88 per cent above average was recorded at Changi. The anomaly was lowest around Jurong West at 62 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 March 2023 – The Northeast Monsoon conditions prevailing over the region are forecast to persist into the second half of March 2023, with low-level winds blowing from the northwest or northeast.

2      In the coming fortnight, short-duration moderate to heavy thundery showers, induced by strong daytime heating of land areas and localised convergence of winds, are expected over parts of the island on most afternoons. On some occasions, the showers may extend into the evening. Overall, near average rainfall can be expected for the second half of March 2023, and the total rainfall for the month is likely be above average over most parts of the island.

3      During this period, the daily temperature is forecast to range between 24 degrees Celsius and 33 degrees Celsius on most days. A few days may be warmer, with daily maximum temperatures of around 34 degrees Celsius, when the winds are light and there is less cloud cover.

4       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 – 15 March 2023)

5      Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first fortnight of March 2023. The low-level winds blew from the northwest or northeast.

6      The first week of March 2023 was generally wet. The monsoon surge[1] that affected Singapore and the surrounding region on 28 February 2023 continued into 1 March 2023. On 3-4 March 2023, another monsoon surge brought widespread moderate to heavy rain over Singapore and the surrounding region. The second week of March 2023 was relatively dry compared to the first week of March 2023. Isolated showers fell over parts of the island on a few afternoons. The highest daily total rainfall in the first half of March 2023 was 104.4mm recorded at the Seng Kang area on 1 March 2023.

7      The monsoon surges also brought cool weather to Singapore in the first week of March 2023. There were three days where the highest daily maximum temperature was below 28 degrees Celsius. On 3 and 4 March 2023, the highest daily maximum temperature only reached 26.1 degrees Celsius at East Coast Parkway. The temperature at Newton dipped to 21.1 degrees Celsius during the monsoon surge on 1 March 2023. That was lowest daily minimum temperature for the first fortnight of March 2023.

8      Well above average rainfall was received across the island in the first half of March 2023. The highest anomaly of 211 per cent above average was recorded at Seng Kang. The anomaly was lowest around Tengah at 12 per cent above average.

[1] A monsoon surge refers to a strengthening of winds over the South China Sea, causing extensive rainclouds to form over our surrounding region. Read more at https://www.weather.gov.sg/learn_weather_systems/

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 March 2023 – The prevailing Northeast Monsoon conditions are expected to continue into the first fortnight of March 2023, with the low-level winds blowing from the northwest or northeast.

2      The widespread and continuous rainy conditions experienced in the end of February are likely to gradually ease in early March 2023. In the first week of the fortnight, the monsoon rain band is forecast to remain over the equatorial region and thundery showers are expected in the afternoon on most days. The showers may extend into the evening on a few days. The latter half of the fortnight is forecast to be relatively drier, with localised short-duration thundery showers expected in the late afternoon over parts of the island on some days. Overall, the total rainfall for the first half of March 2023 is forecast to be above average over most parts of Singapore.

3       During the fortnight, the daily temperature is expected to range between 24 degrees Celsius and 33 degrees Celsius on most days, and may reach around 34 degrees Celsius on a few days when there is less cloud cover.

4       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 February 2023)

5      Northeast Monsoon conditions prevailed over Singapore and the surrounding region in February 2023. The low-level winds blew from the northwest or northeast.

6      The second half of February 2023 was generally dry until the end of the month. On 28 February 2023, the strengthening of the high-pressure system over the northern Asian continent brought a surge of strong north-easterly winds (or monsoon surge[1]) over the South China Sea. The monsoon surge brought widespread continuous moderate to heavy thundery showers over Singapore and the surrounding region with all stations across the island recording more than 100mm of rainfall. The rain was heaviest over the eastern and southern parts of Singapore with the highest daily total rainfall of 225.5mm recorded at Kallang. This was the highest daily total rainfall ever recorded in February, exceeding the previous record of 159.3mm on 4 February 1995

7      In February 2023, the daily maximum temperature was below 33 degrees Celsius on most days. The highest daily maximum temperature of 34.2 degrees Celsius was recorded at Ang Mo Kio on 10 February 2023 while the lowest daily minimum temperature of 21.3 degrees Celsius was recorded at Jurong on 15 February 2023.

8      Well above average rainfall was received across the island in February 2023. The highest anomaly of 281 per cent above average was recorded at around Tanjong Katong area. The anomaly was lowest at Mandai at 81 per cent above average.

[1] A monsoon surge refers to a strengthening of winds over the South China Sea, causing extensive rainclouds to form over our surrounding region. Read more at https://www.weather.gov.sg/learn_weather_systems/

CLIMATE STATION STATISTICS

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

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