Singapore, 2 September 2024 – Southwest Monsoon conditions are prevailing over Singapore and the surrounding region with winds blowing mainly from the southeast or southwest.
2 Localised short-duration thundery showers are expected over parts of the island in the late morning and afternoon on several days in the first half of September 2024. In addition, Sumatra squalls may bring widespread thundery showers and gusty winds on one or two mornings in the latter half of the fortnight. The total rainfall for the first half of September 2024 is forecast to be slightly below average to near average over most parts of the island.
3 The daily maximum temperatures are likely to range between 33 degrees Celsius and 34 degrees Celsius on most days and slightly exceed 34 degrees Celsius on a few days. A few nights may also be warm and humid, and the temperatures may stay above 28 degrees Celsius.
4 For updates of the daily weather forecast, please visit the MSS website (www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.
REVIEW OF THE PAST TWO WEEKS (16 – 31 AUGUST 2024)
5 Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the second half of August 2024, with the prevailing winds blowing mostly from the southeast or southwest.
6 Localised short-duration thundery showers fell over parts of the island in the late morning and afternoon on most days. On 23 August 2024, localised convergence of winds brought heavy thundery showers over the northwestern part of Singapore in the early afternoon. The daily total rainfall of 72.4 mm recorded at Kranji that day was the highest rainfall recorded for the second half of August 2024.
7 The daily maximum temperatures in the second fortnight of August 2024 were between 32 degrees Celsius and 34 degrees Celsius on most days. The highest daily maximum temperature of 34.6 degree Celsius was recorded at Admiralty on 19 August 2024 and at Pulau Ubin on 31 August 2024.
8 Most parts of Singapore recorded below average rainfall in the second fortnight of August 2024. Kranji Reservoir registered rainfall of about 110 per cent above average, and Tai Seng registered rainfall of about 90 per cent below average.
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CLIMATE STATION STATISTICS
Long-term Statistics for September
(Climatological reference period: 1991 – 2020)
| Average daily maximum temperature: | 31.6 °C |
| Average daily minimum temperature: | 25.2 °C |
| Average monthly temperature: | 28.0 °C |
| Average rainfall: | 124.9 mm |
| Average number of rain days: | 13 |
Historical Extremes for September
(Rainfall since 1869 and temperature since 1929)
| Highest monthly mean daily maximum temperature: | 33.0 °C (2019) |
| Lowest monthly mean daily minimum temperature: | 22.4 °C (1930) |
| Highest monthly rainfall ever recorded: | 440.4 mm (1988) |
| Lowest monthly rainfall ever recorded: | 22.8 mm (2019) |