Singaporeans should keep their umbrellas handy for the rest of November as thundery showers are expected over parts of the island on most afternoons.
The Meteorological Service Singapore (MSS) issued a weather advisory on 17 Nov 2025, forecasting wet conditions for the second half of the month. On a few days, the showers may extend into the evening.
Sumatra squalls may also bring widespread thundery showers and gusty winds on a few mornings during this period.
The total rainfall for the next two weeks is forecast to be above average over most parts of the island.
Daily maximum temperatures are likely to range between 32°C and 33°C on most days. However, temperatures may reach around 34°C on a few days.
The Northeast Monsoon is expected to set in around end-November, bringing stronger winds that blow from the cool Northern Hemisphere towards the Equator. The winds are expected to strengthen and blow increasingly from the northeast or northwest.
The monsoon season typically extends to March.
Record-Breaking Heat and Rainfall Patterns in First Half of November
The first half of November saw below-average rainfall across most parts of Singapore, with inter-monsoon conditions bringing light and variable winds over the island and surrounding region.
Thundery showers occurred over parts of Singapore on most days during this period, mainly in the afternoon. Sumatra squalls brought widespread thundery showers and gusty winds on a few days.
On 1 Nov 2025, Newton recorded a daily maximum temperature of 36°C. This marked the highest temperature ever recorded in November since temperature records started in 1929.
The reading exceeded the previous November record of 35.8°C, which was recorded on 18 Nov 2019 in Admiralty and on 3 Nov 2023 in Newton. Daily maximum temperatures went above 33°C on most days during the fortnight.
Rainfall distribution varied significantly across different parts of the island. The area around Changi was the wettest, recording about 49 per cent above-average rainfall. In contrast, Jurong had 64 per cent below-average rainfall.
On 16 Nov 2025, widespread moderate to heavy thundery showers fell over many parts of Singapore in the late morning and afternoon. Pulau Semakau recorded a daily total rainfall of 101.8mm that day, the highest for the two-week period.
National water agency PUB announced on 17 Nov 2025 that more than 600 water level sensors will be installed islandwide by 2028 to improve flood monitoring in Singapore. Other measures in the works include integrating flood alerts on Google Maps and using mobile phone signals to better predict intense rainfall.
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