Singapore
September
Weather in Singapore for September 2025
Your guide to Singapore weather in September - trends and predictions
Until now, September 2025 in Singapore is slightly cooler than the historical average by -1.3 °C.
The forecast for the next days in Singapore predicts temperatures to be around 29 °C, close to the historical average.
In general, the average temperature in Singapore at the beginning of September is 29 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.1 °C by the end of September.
Singapore experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 148.5 mm.
Temperatures
Rain 🌧️
2
Dry days
28
Rainy days
0
Snow days
29°/26°
Temperatures
18 km/h
Avg max wind
75 %
Avg humidity
Singapore Weather September
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What’s the Weather Like in Singapore This September?
Discover the average temperatures and weather trends across Singapore’s cities this September.
Temperatures trend during September in Singapore
See the weather trend as well as the moving average line
September weather in Singapore day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 29° /26° | 4.4 mm | 6 | |
| 2 Sept. |  Partly cloudy | 29° /25° | 6.5 mm | 7 | |
| 3 Sept. | Light rain shower | 29° /26° | 4.8 mm | 6 | |
| 4 Sept. | Light rain shower | 29° /25° | 4.8 mm | 6 | |
| 5 Sept. | Light rain shower | 29° /26° | 5.5 mm | 6 | |
| 6 Sept. | Light rain shower | 29° /26° | 11.2 mm | 6 | |
| 7 Sept. | Light rain shower | 29° /25° | 5.4 mm | 6 | |
| 8 Sept. | Light rain shower | 29° /25° | 6.9 mm | 6 | |
| 9 Sept. | Light rain shower | 29° /25° | 9.8 mm | 6 | |
| 10 Sept. | Light rain shower | 28° /25° | 7.1 mm | 6 | |
| 11 Sept. |  Moderate or heavy rain shower | 29° /25° | 9.7 mm | 6 | |
| 12 Sept. | Light rain shower | 29° /25° | 6.8 mm | 6 | |
| 13 Sept. |  Cloudy | 28° /25° | 3.8 mm | 7 | |
| 14 Sept. |  Thundery outbreaks possible | 29° /26° | 3.6 mm | 6 | |
| 15 Sept. | Light rain shower | 29° /26° | 4.2 mm | 7 | |
| 16 Sept. | Patchy rain possible | 29° /26° | 5.8 mm | 6 | |
| 17 Sept. |  Moderate rain | 27° /25° | 10.9 mm | 1 | |
| 18 Sept. | Patchy rain possible | 29° /27° | 0.4 mm | 3 | |
| 19 Sept. | Moderate rain | 29° /26° | 6.3 mm | 2.1 | |
| 20 Sept. | Patchy rain possible | 29° /26° | 3.7 mm | 2.9 | |
| 21 Sept. | Patchy rain possible | 29° /27° | 2 mm | 3.1 | |
| 22 Sept. | Patchy rain possible | 29° /27° | 0.1 mm | 6 | |
| 23 Sept. | Patchy rain possible | 30° /27° | 2.9 mm | 6 | |
| 24 Sept. |  Sunny | 29° /26° | 0 mm | 7 | |
| 25 Sept. | Patchy rain possible | 29° /27° | 2.1 mm | 6 | |
| 26 Sept. | Patchy rain possible | 30° /27° | 0.5 mm | 6 | |
| 27 Sept. | Patchy rain possible | 29° /28° | 0.1 mm | 6 | |
| 28 Sept. | Patchy rain possible | 29° /27° | 0.9 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /27° | 1.5 mm | 6 | |
| 30 Sept. | Patchy rain possible | 29° /27° | 3.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Singapore in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Singapore forecast closer to your planned date for the most up-to-date weather information.
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Singapore in September - FAQ
What are the expected maximum and minimum temperatures in Singapore during September?
During September, expect a variety of temperatures with highs around 29° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Singapore during September?
Significant rainfall exceeding 148.5 mm is expected in Singapore during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Singapore during September?
The average wind speed in Singapore during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Singapore
Explore the daily rainfall trends and prepare for Singapores September weather 💧
UV exposure in Singapore during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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