The climate in Singāpur during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Singāpur and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 22°C (71°F) is normal.
Daytime temperature | 30.2°C 86.3°F |
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Nightly temperature | 21.5°C 70.6°F |
Average temperature | 25.8°C 78.4°F |
Daily sunshine | 5.9 hrs |
Avg rainfall | 196 mm 7.7 ins |
Rainy days | 9 days |
Sea temperature | 28.9°C 83.9°F |
Humidity | 73% |
Windspeed | 10.1kph 6 mph |
On average September is the 2nd wettest month of the year in Singāpur with around 196mm 7.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Singāpur in September 2025.
Best places to visit in September
Hottest month: | May | 38.4°C 101.1°F |
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Driest month: | January | 3mm 0.1ins |
Sunniest month: | February | 10.2hrs |
Coldest month: | December | 27.3°C 81.1°F |
Wettest month: | July | 201mm 7.9ins |