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Singapore, 30 April 2021 – The warm and wet weather in April 2021 is forecast to continue into the first fortnight of May 2021. With the presence of the monsoon rain band close to the equatorial Southeast Asia region, showers are expected on most days in the first fortnight of May 2021.

2      The prevailing inter-monsoon conditions over Singapore are expected to persist into May 2021. In the first half of May 2021, the low-level winds are forecast to be light and variable in direction and may strengthen to blow from the southwest or west on some days.

3      On most days in the first half of May 2021, short-duration thundery showers with frequent lightning are expected in the afternoon over parts of the island. This is due to strong daytime heating of land areas or coupled with convergence of winds over Singapore and the surrounding vicinity. The showers may extend into the evening on a few days.

4      Also in the first half of May 2021, convergence of low-level winds blowing from the southwest and west may trigger the development of Sumatra squalls over the Strait of Malacca. The eastward passage of the squall toward the South China Sea is expected to bring widespread thundery showers and gusty winds over Singapore on a few days between the predawn hours and morning. Overall, the rainfall in the first half of May 2021 is expected to be above average over most parts of Singapore.

5      Warm conditions are expected on most days in the coming fortnight, and the daily temperature is forecast to range between 24°C and 34°C. The daily maximum temperature could reach around 35°C on a few days, particularly when there are few clouds in the sky. Warm nights can be expected with night-time temperatures of up to 28°C 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.

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 – 30 April 2021)

7      In April 2021, inter-monsoon conditions prevailed over Singapore and the surrounding region. During the month, the prevailing winds were generally light and variable in direction. Under the influence of a few tropical storms over the Western Pacific Ocean, the prevailing winds strengthened and blew from the southwest or west on some days.

8      On most days in April 2021, thundery showers fell in the afternoon over many parts of the island due to strong daytime heating of land areas. On a few of these days, the showers extended into the evening and night due to large-scale convergence of winds in the surrounding region.

9      On 17 April 2021, the influence of Typhoon Surigae over the Western Pacific Ocean triggered the development of a Sumatra squall over the Strait of Malacca in the morning. The squall brought widespread thundery showers over Singapore between the late morning and afternoon. The rain was heaviest over the western and southern parts of the island with several rainfall stations recording more than 100mm of rain that afternoon. The daily total rainfall of 170.6mm recorded at Ulu Pandan that day was the highest rainfall recorded for April 2021. It is also the record highest rainfall in a day for April since 1980, surpassing the previous record of 159.9mm set in 2007.

10     It was generally warm in April 2021. The daily maximum temperature was above 34°C on most days, with 11 days recording temperatures of 35°C or more. The highest daily maximum temperature of 36.3°C was recorded at Ang Mo Kio on 2 April 2021.

11     Many parts of Singapore recorded well above-average rainfall in April 2021. The rainfall anomaly was highest at Mandai at 110% above average.

CLIMATE STATION STATISTICS

Long-term Statistics for May
(Climatological reference period: 1981 – 2010)

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

Singapore, 1 April 2021 – The Northeast Monsoon conditions that have been prevailing over the region since December 2020 are expected to gradually weaken and end with the onset of inter-monsoon conditions in the first half of April 2021. The prevailing low-level winds over the equatorial Southeast Asia region including Singapore are forecast to become variable in direction and are expected to persist through May 2021.

2      During the inter-monsoon period, warm weather and thundery showers in the afternoon and early evening are common. The prevailing light winds coupled with strong day-time heating of land areas are conducive for the development of localised and intense thunderstorms. During the inter-monsoon months, the incidence of lightning activity is higher than other times of the year.

3      In the first fortnight of April 2021, the monsoon rain band is forecast to lie close to the equatorial Southeast Asia region. 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, with strong convergence of winds in the surrounding vicinity, the thundery showers could extend into the early evening.

4      Also in the coming fortnight, the prevailing winds are forecast to shift to blow from the west on a few days. The eastward passage of a Sumatra squall from the Strait of Malacca could bring thundery showers with gusty winds over Singapore on one or two mornings. In addition, on one or two days in the fortnight, it is expected to be fair and warm arising from stable atmospheric conditions over Singapore and the surrounding vicinity. Overall, the rainfall for the first fortnight of April 2021 is expected to be near normal over most parts of the island.

5      Climatologically, April is one of the warmest months of the year. On most days in the first half of April 2021, the daily temperature is forecast to range between 25°C and 34°C. On a few days, the daily maximum temperature could reach a high of around 35°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, or the MSS’ Weather@SG app.

REVIEW (1 – 31 March 2021)

7      In March 2021, the dry phase of the Northeast Monsoon prevailed over Singapore and the surrounding region, and the low-level winds blew generally from the north or northeast.

8      Compared to the first fortnight of March 2021 where there were several days of dry and warm conditions, the second fortnight of March 2021 was wet with thundery showers in the afternoon on many days, mostly over the western half of the island. The wet weather was due to strong day-time heating of land areas coupled with convergence of winds either over Singapore or the surrounding vicinity. On 23 March 2021, thundery showers fell over many areas of the island, and was particularly intense over the western half of Singapore. The daily total rainfall recorded that day was 151.5mm at Jurong West. This was the highest daily total rainfall recorded in March 2021.

9      Compared to the second half of March 2021, the first half of the month was generally warmer with more days recording maximum temperatures of 34°C or more. The highest daily maximum temperature of 35.6°C was recorded at Tengah on 2 March 2021. At the Changi climate station, the mean monthly temperature of 27.9°C for March 2021 was 0.4°C higher than the month’s long-term average.

10     Almost all parts of the island recorded average to slightly above average rainfall in March 2021. The highest anomaly of 66% above average was recorded at Ulu Pandan. The anomaly at Ang Mo Kio was 16% below average.

CLIMATE STATION STATISTICS

Long-term Statistics for April
(Climatological reference period: 1981 – 2010)

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

Singapore, 16 March 2021 – The prevailing Northeast Monsoon conditions are forecast to persist over Singapore and the surrounding region for the rest of March 2021. During the period, the prevailing low-level winds are forecast to blow from the northwest or northeast on most days.

2      In the coming fortnight, the monsoon rain band is expected to lie close to the equatorial Southeast Asia region, and the Madden-Julian Oscillation is forecast to be in its wet phase over Singapore in the latter half of the fortnight. Compared to the first fortnight of March 2021, more thundery showers are expected over Singapore and the surrounding vicinity in the second fortnight of the month.

3      For the rest of March 2021, moderate to heavy thundery showers are expected over parts of the island in the afternoon on most days, particularly in the second half of the fortnight. There could be a few days where the showers may extend into the evening. Overall, the rainfall for March 2021 is forecast to be near normal over most parts of the island.

4      In the coming fortnight, the daily temperatures are forecast to range between 24°C and 33°C on most days. There could be a few warm days where the maximum temperature could lie within the 34°C range, particularly when there are few clouds in the sky. Overall, the temperatures in the second fortnight of March 2021 are not expected to be as warm as that in the first half of the month.

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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 15 March 2021)

6      The dry phase of the Northeast Monsoon season persisted over Singapore and the surrounding region in the first half of March 2021, with prevailing low-level winds blowing generally from the north or northeast.

7      The first fortnight of March 2021 was generally fair and warm, particularly in the first week of the month. This was due to stable atmospheric conditions arising from the presence of a dry air mass over Singapore and the equatorial Southeast Asia region. On several days in the latter half of the fortnight, strong solar heating of land areas coupled with convergence of winds in the surrounding vicinity brought moderate to heavy thundery showers over many parts of the island. On 13 March 2021, moderate to heavy thundery showers fell over the island in the afternoon, and the daily total rainfall recorded that day was 98.3mm at Sengkang. This was the highest rainfall recorded in a day for the first fortnight of March 2021.

8      In the first fortnight of March 2021, the daily maximum temperature on most days were above 34.0°C. On 2 March 2021, the highest daily maximum temperature of 35.6°C was recorded at Tengah. The lowest daily minimum temperature of 21.4°C was recorded at Sembawang in the early hours of 8 March 2021.

9      Many parts of Singapore recorded below normal rainfall in the first fortnight of March 2021. The anomaly was lowest at Ang Mo Kio at 72% below average.

CLIMATE STATION STATISTICS

Long-term Statistics for March
(Climatological reference period: 1981 – 2010)

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

Singapore, 1 March 2021 – In the first fortnight of March 2021, the weather in Singapore will continue to be influenced by the prevailing Northeast Monsoon. During this period, the low-level winds are forecast to blow from the northwest or northeast. With the monsoon rain band forecast to lie closer to the Equator in the coming fortnight, more showers can be expected compared to the last fortnight of February 2021.

2      On the first few days of March 2021, a mass of dry air is forecast over the equatorial Southeast Asia region. This is expected to bring stable atmospheric conditions over Singapore and the surrounding region, and generally fair and occasionally windy conditions are expected. In the latter half of the first fortnight of March 2021, as the monsoon rain band migrates closer to the Equator, short-duration thundery showers are expected over parts of the island in the afternoon on most days. On a few of these days, heavy thundery showers can be expected particularly when there is convergence of winds over Singapore and the surrounding vicinity coupled with strong day time heating of land areas. Overall, the rainfall for the first fortnight of March 2021 is forecast to be near normal over most parts of the island.

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

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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 28 February 2021)

5      The dry phase of the Northeast Monsoon season persisted over Singapore and the surrounding region in February 2021, with low-level winds blowing mostly from the north or northeast.

6      February 2021 was fair and windy on most days and the monsoon rain band remained south of the Equator in the vicinity of the Java Sea. On a few days, strong daytime heating of land areas coupled with converging winds over the island brought moderate short-duration thundery showers over a few parts of the island in the afternoon. The highest daily total rainfall recorded in February 2021 was 46.9mm at Kranji on 11 February.

7      At the Changi climate station, the total rainfall recorded in February 2021 was 1.0mm which ranks February 2021 as the second driest February since rainfall records in Singapore began in 1869. The driest ever recorded February in Singapore is February 2014 with a monthly total of 0.2mm. The dry weather also resulted in the lowest average daily relative humidity of 73.8% recorded for February since continuous humidity records commenced in 1984, surpassing the previous record low of 74.1% in February 2019.

8      It was a particularly windy February 2021, with an average daily wind speed of 13.1 km/h recorded at the Changi climate station. This ranks February 2021 as the second windiest February since continuous wind records commenced in 1984, behind the 13.7 km/h recorded in February 2014. The weather statistics for February 2021 are summarised in Table 1.

Table 1: Weather statistics for February 2021 recorded at Changi climate station.

9      It was relatively cloudy on most days in February 2021 with daily maximum temperatures below 34°C except for a few days at the end of the month where the highest daily maximum temperatures recorded were above 35.0°C. The highest daily maximum temperature of 35.5°C was recorded on 26 February 2021 at Ang Mo Kio. The daily minimum temperature in February 2021 ranged between 22.6°C and 24.5°C. The lowest daily minimum temperature of 22.6°C was recorded at Jurong on 18 February 2021.

10      Singapore received well below normal rainfall in February 2021. The highest anomaly of 99% below average was recorded at Changi. The anomaly was lowest at Sentosa at 8% below average.

CLIMATE STATION STATISTICS

Long-term Statistics for February
(Climatological reference period: 1981 – 2010)

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

WEATHER OUTLOOK (16 – 28 February 2021)

1 The Northeast Monsoon season is currently in its dry phase, which is characterised by drier weather and occasionally windy conditions. The dry phase is forecast to persist for the rest of February 2021 with prevailing winds blowing from the north or northeast.

2 The generally dry weather in the first fortnight of February 2021 is forecast to continue into the second fortnight of the month. Particularly in the first week of the coming fortnight, an intensification of a high-pressure system over central China is forecast to bring a mass of dry air accompanied with a strengthening of northeast winds over the South China Sea. As a result, stable atmospheric conditions are expected over Singapore and the surrounding region. During the week, generally fair weather with occasionally windy conditions are forecast for Singapore. There could be short-duration thundery showers in the afternoon over parts of the island on one or two days.

3 While generally fair weather is also forecast in the last week of the month, strong daytime heating of land areas coupled with a weakening of low-level winds are expected to bring short-duration thundery showers between the afternoon and early evening over parts of the island on a few days. Overall, the rainfall for February 2021 is expected to be below normal over most parts of the island.

4 For the rest of February 2021, the daily temperature is forecast to range between 24°C and 33°C on most days. In the latter half of the fortnight, the maximum temperature could reach a high of 34°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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 15 February 2021)

6 The dry phase of the Northeast Monsoon season prevailed over Singapore and the surrounding region in the first half of February 2021, with low-level winds blowing mostly from the north or northeast.

7 During the first fortnight of February 2021, the monsoon rain band was located south of the Equator and generally fair weather prevailed over Singapore. During the period, strong northeast winds over the South China Sea brought occasionally windy conditions and passing showers to Singapore. On a few days in the fortnight, sea breeze and opposing prevailing winds converged, which brought thunderstorms over the western and southern parts of the island in the late afternoon and evening.

8 In the first fortnight of February 2021, the highest daily maximum temperature of 34.2°C was recorded at Jurong Island on 7 February 2021. The lowest daily minimum temperature of 22.8°C was recorded at Sembawang on 5 February 2021. On most days, the daily temperature ranged between 23.5°C and 33.5°C.

9 In the first half of February 2021, rainfall was below average over many parts of the island. The highest rainfall anomaly of 98% below average was recorded at Changi, while highest rainfall anomaly of 68% above average was recorded at Sentosa.

CLIMATE STATION STATISTICS

Long-term Statistics for February
(Climatological reference period: 1981 – 2010)

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

Singapore, 1 February 2021 – The first half of February 2021 is expected to be generally dry and warm, with short-duration afternoon thundery showers on some days. The prevailing Northeast Monsoon conditions are forecast to persist in the first half of February 2021, with low-level winds blowing from the northwest or northeast.

2      In the first week of the fortnight, a strengthening of northeast winds over the South China Sea is forecast to bring windy conditions with passing showers over Singapore on a few days. For most part of the week, fair and warm weather can be expected due to stable atmospheric conditions arising from the presence of a dry air mass over the equatorial Southeast Asia region. Short-duration thundery showers are expected in the afternoon mostly in the second half of the fortnight due to strong solar heating of land areas. On a few days, the showers may extend into the evening. Overall, the rainfall for the first half of February 2021 is expected to be below normal over most parts of the island.

3      In the first fortnight of February 2021, the daily temperatures are forecast to range between 24°C and 33°C on most days. The maximum temperature could reach around 34°C on days with little or no rain.

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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 31 January 2021)

5     Northeast Monsoon conditions prevailed over Singapore and the surrounding region in January 2021. The prevailing low-level winds blew from the north or northeast.

6      It was exceptionally wet and cool in the first half of January 2021. In comparison, the second half of the month was generally warmer and drier, with short-duration thundery showers over parts of the island in the afternoon on some days.

7      In the first fortnight of January 2021, high-pressure systems over northern continental Asia brought a surge of northeast monsoon winds (monsoon surge[1]) over the equatorial South China Sea region on 1-2 January 2021 and again on 8 – 13 January 2021. Widespread continuous rain, heavy at times fell over Singapore over the New Year weekend and the highest daily total rainfall recorded during the 2-day event was 210.6mm at the Changi climate station.

8      The surge of strong northeast winds coupled with convergence of winds over Singapore and the surrounding region brought windy and rainy weather across the island during the second monsoon surge event (8 – 13 January 2021). Particularly on 10 January 2021, continuous moderate to heavy rain fell over the island, and the total rainfall of 204.0mm recorded at Changi that day was the highest recorded during this surge event.

9      In January 2021, the total rainfall recorded at the Changi climate station was 692.8mm, of which 648.6mm was recorded in the first half of the month. In the second half of the month, only 44.2mm of rain was recorded at the station. January 2021 is thus the second wettest January since rainfall records began in 1869, surpassing the previous record of second wettest January in 1918 where the total rainfall was 634.5mm. The highest ever recorded total rainfall for January is 818.6mm in January 1893.

10     The first half of January 2021 was cooler than the second half of the month, mainly due to the cloudy and rainy weather brought about by the two monsoon surge events. In the first half of the month, the daily maximum temperature was below 30°C on almost all days and the daily minimum temperature was 23°C and below on several days. The lowest daily minimum temperature of 21.1°C was recorded at Newton on 2 January 2021. With the warmer weather in the second half of January 2021, the daily maximum temperature ranged between 31°C and 33°C on most days.

11      At the Changi climate station, the monthly mean temperature of 26.0°C for January 2021 was also the lowest for January in the last 30 years, surpassing the previous January record of 26.1°C in 2018.

12      The rainfall over Singapore in January 2021 was significantly above normal. The highest anomaly of 194% above average was recorded at Changi. The anomaly was lowest at Jurong at 35% 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.

CLIMATE STATION STATISTICS

Long-term Statistics for February
(Climatological reference period: 1981 – 2010)

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

Singapore, 15 January 2021 – The prevailing Northeast Monsoon season is forecast to continue for the rest of January 2021 with low-level winds blowing from the northwest or northeast. Compared to the exceptionally wet and cool first fortnight of the year, the second fortnight of January 2021 is forecast to be generally dry and warm. Daily maximum temperatures in the coming fortnight are expected to range between 32°C and 33°C on most days, with highs of around 34°C on a few days.

2       In the second fortnight of January 2021, short-duration thundery showers due to strong day time heating of land areas can be expected mostly in the afternoon over parts of the island on some days. In addition, with stable atmospheric conditions arising from the presence of a dry air mass over the equatorial Southeast Asia region, Singapore can expect fair and occasionally windy conditions on a few days. While rainfall for the second half of January 2021 is expected to be below normal, the overall rainfall for January 2021 is forecast to be well above-normal due to the exceptionally wet weather in the first half of the month.

3       On most days in the second half of January 2021, the daily temperatures are forecast to range between 24°C and 33°C. It is expected to be warm with daily maximum temperatures of around 34°C on days with little or no rain and when winds are light.

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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 14 January 2021)

5      In the first fortnight of January 2021, Northeast Monsoon conditions prevailed over Singapore and the surrounding region. During the fortnight, the low-level winds blew mostly from the northeast.

6      The first half of January 2021 was exceptionally wet and cool due to a surge of northeast monsoon winds (monsoon surge¹) over the equatorial South China Sea region on 1-2 January 2021 and again on 8 – 13 January 2021. The New Year weekend surge event brought widespread continuous rain, heavy at times over the island. The highest daily total rainfall recorded on 1 and 2 January 2021 were 147.3mm at Upper Changi Road East and 210.6mm at the Changi climate station respectively. The total rainfall at the climate station on 2 January 2021 was slightly less than the record high in a day for January at 216.2mm (on 30 January 2011).

7      The second monsoon surge event started on 8 January 2021 and persisted over the equatorial South China Sea for the next few days before it eased on 13 January 2021. The surge coupled with large-scale convergence of winds over Singapore and the surrounding vicinity brought windy and rainy weather during the period. It was particularly windy with continuous rain, heavy at times over the island on 10 January 2021. The highest daily total rainfall of 204.0mm recorded during the 6-day surge event was on 10 January 2021 at Changi.

8      At the Changi climate station, the total rainfall in the first two weeks of January 2021 was 648.4mm which ranks January 2020 as the wettest January in the last 30 years. This surpasses the 600.9mm recorded in January 2004. Based on long term statistics, January 2021’s total rainfall (to date) of 648.4mm also ranks January 2021 as the second wettest January since rainfall records in Singapore began in 1869. The wettest ever January in Singapore on record is January 1893 with a monthly total of 818.6mm.

9      The first fortnight of January 2021 was also exceptionally cool due to the cloudy and rainy weather arising from the two monsoon surge events. The daily maximum temperature was below 30°C on all days in the fortnight except for 5, 6 and 14 January 2021. The daily minimum temperature dipped to 23°C and below on the first five days of the year. The lowest daily minimum temperature in the first fortnight of the month was 21.1°C, recorded on 2 January 2021 at Newton.

10      It was also relatively windy in the first half of January 2021. At the Changi climate station, wind gusts of up to 46.9km/h were recorded on 12 Jan 2021 during the second monsoon surge event. The highest ever recorded wind gust for January at the Changi climate station was 73.4km/h. Island-wide, the highest maximum wind gust recorded in the first half of January 2021 was 70.2km/h at Admiralty on 12 January 2021.

11      Singapore received significantly above normal rainfall in the first fortnight of January 2021. The highest anomaly of 511% above average was recorded at Changi. The anomaly was lowest at Jurong at 153% 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.

CLIMATE STATION STATISTICS

Long-term Statistics for January
(Climatological reference period: 1981 – 2010)

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

Singapore, 31 December 2020 – The prevailing Northeast Monsoon conditions in the region are forecast to persist into January 2021, 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 strengthen and bring cooler conditions over the region.

2       In the first week of the year, with the strengthening of the high-pressure system, a surge of strong north-easterly winds (or monsoon surge) is expected over the South China Sea. This is forecast to bring windy and cooler conditions with periods of moderate to heavy showers over Singapore and the surrounding vicinity on two to three days.

3       On most days in the fortnight, moderate thundery showers due to strong solar heating of land areas are expected in the afternoon and may extend into the evening on some days. On a few days, large-scale convergence of winds in the region could bring heavy and widespread thundery showers over the island. Overall, the rainfall for first half of January 2021 is expected to be above average over most parts of the island.

4      The monsoon surge in early January 2021 is also expected to bring cooler daily temperatures of between 22 °C and 31 °C on a few days. For the rest of the fortnight, the daily temperatures are forecast to range between 23 °C and 33 °C. The daily maximum temperature may still reach a high of up to 34 °C on one or two 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 MSS’ Weather@SG app, and/or the myENV app.

REVIEW (1 – 30 December 2020)

6      In December 2020, Northeast Monsoon conditions prevailed over Singapore and the surrounding region. During this period, the low-level winds blew from the northwest or northeast.

7      During the month, short-duration moderate to heavy thundery showers fell over the island mostly between the afternoon and evening. On a few days, the showers extended into the night. On 26 December 2020, strong solar heating of land areas coupled with localised convergence of winds brought heavy thundery showers over many parts of the island. The daily total rainfall recorded that day was 108.4mm at Mandai. This was the highest total rainfall in a day for December 2020.

8      The daily temperature in December 2020 ranged between 22.2 °C and 35.1 °C . The highest daily maximum temperature of 35.1 °C was recorded on Christmas Day at Admiralty. The lowest daily minimum temperature of 22.2 °C was recorded at Sembawang on 28 December 2020. While it rained over the island on most days of the month, the mean monthly temperature of 27.2 °C for December 2020 at the Changi climate station was 0.8 °C higher than the month’s long-term average.

9      Many parts of the island recorded near average rainfall in December 2020, except for a few parts of western Singapore where rainfall was below average. Around the Choa Chu Kang area, rainfall was 39% below average.

CLIMATE STATION STATISTICS

Long-term Statistics for January
(Climatological reference period: 1981 – 2010)

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