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Singapore weather in September 2025
Expect 86°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Singapore in September. Check more long-term weather averages for Singapore in September before you book your next holiday to Singapore in 2025/2026.
- 86°F max day temperature
86 - 5 hours of sunshine per day
- 15 days with some rainfall
15 - 73°F min night temperature
73 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 6.8 inches of monthly rainfall
6.8 - 11+ (Extreme) UV index
11 - 84°F sea temperature
84
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The September weather guide for Singapore shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
More about Singapore
How hot is it in Singapore in September?
Daytime temperatures usually reach 86°F in Singapore in September with very high heat and humidity, falling to 73°F at night.
How sunny is it in Singapore in September?
There are normally 5 hours of bright sunshine each day in Singapore in September - that's 44% of daylight hours.
How warm is the sea around Singapore in September?
The average sea temperature around Singapore in September is 84°F.
Does it rain in Singapore in September?
There are usually 15 days with some rain in Singapore in September and the average monthly rainfall is 6.8 inches.
Singapore September sunrise & sunset times
Browse the sunrise and sunset times for Singapore in September 2025. Select a month to view Singapore sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 07:01 | 19:09 |
| Monday, 15th September 2025 | 06:56 | 19:03 |
| Tuesday, 30th September 2025 | 06:52 | 18:58 |
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