Colombo
September
Weather in Colombo for September 2027
Your guide to Colombo weather in September - trends and predictions
In general, the average temperature in Colombo at the beginning of September is 28.2 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.3 °C by the end of September.
Colombo experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 493 mm.
Is September a good time to visit Colombo? check out the best time to travel to Colombo page.
Temperatures
Rain 🌧️
More
2
Dry days
28
Rainy days
0
Snow days
28°/24°
Temperatures
19 km/h
Avg max wind
84 %
Avg humidity
Colombo Weather September
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Temperatures trend during September in Colombo
See the weather trend as well as the moving average line
September weather in Colombo day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Moderate rain | 28° /25° | 19.8 mm | 6 | |
| 2 Sept. | Moderate rain | 28° /25° | 22.3 mm | 6 | |
| 3 Sept. |  Heavy rain | 28° /24° | 28.4 mm | 6 | |
| 4 Sept. | Moderate rain | 28° /24° | 16.6 mm | 6 | |
| 5 Sept. | Moderate rain | 29° /25° | 22.6 mm | 5 | |
| 6 Sept. | Moderate rain | 29° /25° | 19 mm | 5 | |
| 7 Sept. | Moderate rain | 29° /25° | 20 mm | 6 | |
| 8 Sept. | Moderate rain | 29° /25° | 16 mm | 5 | |
| 9 Sept. | Moderate rain | 29° /25° | 19.9 mm | 6 | |
| 10 Sept. | Moderate rain | 28° /25° | 17 mm | 5 | |
| 11 Sept. | Moderate rain | 28° /25° | 18.6 mm | 5 | |
| 12 Sept. |  Light rain | 29° /25° | 6.5 mm | 5 | |
| 13 Sept. | Moderate rain | 29° /25° | 10.7 mm | 5 | |
| 14 Sept. | Moderate rain | 29° /25° | 12.2 mm | 5 | |
| 15 Sept. | Moderate rain | 28° /25° | 14.6 mm | 5 | |
| 16 Sept. | Moderate rain | 28° /24° | 16.8 mm | 5 | |
| 17 Sept. | Moderate rain | 29° /25° | 15.7 mm | 6 | |
| 18 Sept. | Moderate rain | 28° /25° | 13 mm | 6 | |
| 19 Sept. | Moderate rain | 29° /25° | 14.9 mm | 5 | |
| 20 Sept. | Heavy rain | 27° /24° | 28.1 mm | 5 | |
| 21 Sept. | Moderate rain | 28° /24° | 10 mm | 6 | |
| 22 Sept. | Moderate rain | 28° /24° | 11 mm | 5 | |
| 23 Sept. | Moderate rain | 28° /24° | 13.9 mm | 5 | |
| 24 Sept. | Heavy rain | 28° /25° | 25.6 mm | 5 | |
| 25 Sept. | Moderate rain | 28° /25° | 18.5 mm | 5 | |
| 26 Sept. | Moderate rain | 28° /24° | 17 mm | 5 | |
| 27 Sept. | Moderate rain | 29° /25° | 15.3 mm | 6 | |
| 28 Sept. | Moderate rain | 28° /24° | 12 mm | 6 | |
| 29 Sept. | Light rain | 29° /25° | 8.7 mm | 6 | |
| 30 Sept. | Light rain | 29° /25° | 8.6 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Colombo 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 Colombo forecast closer to your planned date for the most up-to-date weather information.
Change Month
Colombo in September - FAQ
What are the expected maximum and minimum temperatures in Colombo during September?
During September, expect a variety of temperatures with highs around 28° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Colombo during September?
Significant rainfall exceeding 493 mm is expected in Colombo during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Colombo during September?
The average wind speed in Colombo during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Colombo
Explore the daily rainfall trends and prepare for Colombos September weather 💧
Typically, Colombo has 28 rainy days in September with a total of 493 mm of rainfall.
UV exposure in Colombo during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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