Category Archives: News

Singapore, 16 January 2024 – The prevailing Northeast Monsoon conditions are expected to continue in the second half of January 2024, with winds blowing mainly from the northwest or northeast.

2     The prevailing wet weather is likely to continue in the first week of the coming fortnight. Between 18 and 20 January 2024, widespread continuous rain, heavy at times and with thunder, may affect Singapore and the surrounding vicinity. In the second half of the fortnight, localised short-duration thundery showers are expected in the afternoon on several days, and occasionally windy conditions with passing showers on one or two days. Overall, the rainfall for the second half of January 2024 is expected to be above average over most parts of the island.

3     The daily temperature is expected to range between 23 degrees Celsius and 29 degrees Celsius on the days when there is continuous rain. For the rest of the fortnight, the daily maximum temperatures are expected to range between 32 degrees Celsius and 33 degrees Celsius on most days.

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 OF THE PAST TWO WEEKS (1 – 15 January 2024)

5     Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of January 2024 and the winds blew from the northwest or northeast.

6     The monsoon rain band continued to remain over the equatorial Southeast Asia region and brought wet weather over Singapore in the first two weeks of January 2024. Thundery showers fell over most parts of the island in the afternoon on most days. The showers extended into the night on several of these days. On 4 January 2024, widespread moderate to heavy thundery showers fell over many parts of Singapore. The daily total rainfall of 121.0 mm recorded at Pulau Tekong that day was the highest rainfall recorded for the first half of January 2024.

7     The daily maximum temperatures in the first fortnight of January 2024 were below 33 degrees Celsius on all, except two days. The highest daily maximum temperature of 33.6 degree Celsius was recorded at Clementi on 2 January 2024.

8     Well above average rainfall was registered across the island in the first half of January 2024. The highest anomaly of 184 per cent above average was recorded at Kranji. The anomaly was lowest around Bukit Panjang at 77 per cent above average.

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, 2 January 2024 – The wet weather is likely to continue in the first fortnight of 2024.

2     Moderate to heavy thundery showers are expected over parts of the island on most afternoons. The showers may extend into the night on a few of these days. The total rainfall for the first half of January 2024 is forecast to be above average over most parts of the island.

3     During this period, the daily temperatures are likely to range between 24 degrees Celsius and 33 degrees Celsius on most days. Although thundery showers are expected on most days, the daily maximum temperature may reach around 34 degrees Celsius on a few days.

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 OF THE PAST TWO WEEKS (15 – 31 December 2023)

5     Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the second half of December 2023 and the low-level winds blew from the northwest or northeast.

6     The monsoon rain band continued to remain over the equatorial Southeast Asia region and brought wet weather over Singapore. Thundery showers fell over parts of the island in the afternoon on all days in the second fortnight of December 2023. The showers extended into the night on a few occasions. On 25 December 2023, widespread moderate to heavy thundery showers fell over many parts of Singapore in the afternoon. The daily total rainfall of 134.0 mm recorded at Admiralty that day was the highest rainfall recorded for the second half of December 2023 and for December 2023.

7     The daily maximum temperatures in the second half of December 2023 ranged between 33 degrees Celsius and 34 degrees Celsius on most days. The highest daily maximum temperature of 34.4 degree Celsius was recorded at Clementi on 15 December 2023.

8     Most parts of the island recorded above average rainfall in the second half of December 2023. Admiralty recorded rainfall of 73 per cent above average, and Simei recorded rainfall of 18 per cent below average.

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, 15 December 2023 – The Northeast Monsoon conditions which prevailed since the start of December 2023 are expected to continue in the second half of the month, with winds blowing mainly from the northwest or northeast.

2    The current wet weather is likely to continue for the rest of the month. On most days in the fortnight, thundery showers are expected in the afternoon and may extend into the evening on some days. The thundery showers could be widespread and heavy on a few of these days. In addition, Singapore may experience windy conditions with brief periods of passing showers on one or two days during the fortnight. Overall, the rainfall for the second half of December 2023 is expected to be above average over most parts of the island.

3    For the coming fortnight, the daily temperature is forecast to range between 24 degrees Celsius and 33 degrees Celsius on most days. Although thundery showers are expected on most days, the daily maximum temperature may reach around 34 degrees Celsius on some days.

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 OF THE PAST TWO WEEKS (1 – 14 December 2023)

5    Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first fortnight of December 2023. During the period, the low-level winds blew mainly from the northwest or northeast on most days.

6    During the first two weeks of December 2023, Singapore experienced moderate to heavy thundery showers on most days. The showers fell mostly in the afternoon, and on few days, extended into the evening. The heavy thundery showers that fell over many areas of the island on 12 December 2023 resulted in a daily total rainfall of 89.9mm recorded at Woodlands. This was the highest total rainfall in a day for the first half of December 2023.

7    In the first fortnight of December 2023, the highest daily maximum temperature recorded was 35.5 degrees Celsius on 5 December 2023 at Admiralty. Lowest daily minimum temperature of 22.9 degrees Celsius was recorded at Admiralty and Choa Chu Kang on 3 December 2023.

8    Most parts of the island recorded above average rainfall in the first half of December 2023. Yio Chu Kang recorded rainfall of 110 per cent above average, and Punggol recorded rainfall of 33 per cent below average.

CLIMATE STATION STATISTICS

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

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

Singapore, 1 November 2023 – The Southwest Monsoon is coming to an end and inter-monsoon conditions are expected to set in during the first week of November 2023. The inter-monsoon period is characterised by light and variable winds, and thunderstorms which may at times be heavy. Lightning activity tends to be higher during the inter-monsoon months than other months of the year.

2    Afternoon thundery showers are expected on most days in the first half of November 2023. The showers may extend into the evening on a few days. November is climatologically one of the wettest months for Singapore. While showers are expected on most days, we expect below average rainfall in the first fortnight of November 2023.

3    The daily maximum temperatures in the first fortnight of November 2023 are forecast to range between 33 degrees Celsius and 35 degrees Celsius on most days.

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

REVIEW (1 – 31 October 2023)

5    Southwest Monsoon conditions prevailed over Singapore and the surrounding region in October 2023, with low-level winds blowing mostly from the southeast or southwest.

6    The second fortnight of October 2023 saw more showers as the rain band shifted closer to the Equatorial region. Short-duration thundery showers fell over parts of the island in the afternoon on most days. The showers extended into the evening on a few of these days. On 23 October 2023, widespread moderate to heavy thundery showers occurred over many parts of the island in the afternoon. The daily total rainfall of 88.4 mm recorded at Jurong West that day was the highest rainfall recorded for October 2023.

7    Following the haze episode which affected Singapore on 7 and 8 October 2023, the haze situation gradually improved with increased showers over Singapore and the surrounding region later in the month.

8    October 2023 was generally warm with daily maximum temperatures above 34 degrees Celsius on 25 days. On 9 October 2023, temperatures exceeded 35 degrees Celsius in several parts of Singapore, with 36.3 degrees Celsius recorded at Admiralty. This is the highest temperature ever recorded in Singapore in the month of October, surpassing the previous record high of 35.7 degrees Celsius recorded on 14 October 2001 and 13 October 2019.

9    Below average rainfall was recorded across the island in October 2023 with the highest anomaly of 72 per cent below-average recorded at Yio Chu Kang.

CLIMATE STATION STATISTICS

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

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

Singapore, 22 October 2023 – As at 6pm, the 1-hr PM_2.5 concentration readings were 6-19 µg/m³, in Band I (Normal), and the 24-hr PSI was 38-68, in the Good to Moderate range.

Update on Hotspot and Haze Situation

2    Showers were observed over many parts of Singapore and the surrounding region today. 57 hotspots were detected mainly in southern Sumatra, higher than the 7 hotspots detected yesterday. Some slight localised smoke plumes were observed to emanate from a few hotspots in southern Sumatra.

3    For the next few days, showers are expected over most of the region, which should keep the overall hotspot and haze situation subdued. With the prevailing winds forecast to be generally light and variable in direction, the likelihood of transboundary haze affecting Singapore is assessed to be low. For the next 24 hours, the 24-hr PSI for Singapore is forecast to be in the Moderate range.

Activity Guidelines

4    The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.

5     For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (https://www.weather.gov.sg), mobile app (myEnv) or follow us on NEA Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at https://asmc.asean.org.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

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