Southern (Galle)
September
Weather in Southern for September 2025
Your guide to Southern weather in September - trends and predictions
Until now, September 2025 in Southern has been nearly identical to the historical average, with a temperature of 27.6 °C (showing only a slight deviation of -0.4 °C).
The forecast for the next days in Southern predicts temperatures to be around 28 °C, close to the historical average.
In general, the average temperature in Southern at the beginning of September is 28 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.1 °C by the end of September.
Southern experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 469.2 mm.
Temperatures
Rain 🌧️
0
Dry days
30
Rainy days
0
Snow days
28°/26°
Temperatures
24 km/h
Avg max wind
82 %
Avg humidity
Southern Weather September
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What’s the Weather Like in Southern This September?
Discover the average temperatures and weather trends across Southern’s cities this September.
Temperatures trend during September in Southern
See the weather trend as well as the moving average line
September weather in Southern day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 28° /25° | 20.3 mm | 6 | |
| 2 Sept. | Light rain shower | 28° /25° | 14.1 mm | 6 | |
| 3 Sept. |  Moderate or heavy rain shower | 28° /25° | 16.2 mm | 6 | |
| 4 Sept. | Light rain shower | 28° /25° | 5.4 mm | 6 | |
| 5 Sept. | Light rain shower | 28° /25° | 11.9 mm | 6 | |
| 6 Sept. | Light rain shower | 28° /25° | 15.7 mm | 6 | |
| 7 Sept. | Light rain shower | 28° /25° | 9.4 mm | 6 | |
| 8 Sept. | Light rain shower | 28° /26° | 8 mm | 6 | |
| 9 Sept. | Light rain shower | 28° /25° | 11 mm | 6 | |
| 10 Sept. | Light rain shower | 28° /25° | 23.4 mm | 6 | |
| 11 Sept. | Patchy rain possible | 28° /25° | 6.4 mm | 6 | |
| 12 Sept. | Light rain shower | 29° /26° | 7.8 mm | 6 | |
| 13 Sept. | Light rain shower | 28° /26° | 16.2 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 28° /25° | 20.2 mm | 6 | |
| 15 Sept. | Light rain shower | 27° /25° | 22 mm | 6 | |
| 16 Sept. | Moderate or heavy rain shower | 28° /26° | 17.3 mm | 6 | |
| 17 Sept. |  Heavy rain | 28° /26° | 25.4 mm | 3 | |
| 18 Sept. | Heavy rain | 27° /26° | 26.6 mm | 2.3 | |
| 19 Sept. |  Moderate rain | 28° /26° | 19.2 mm | 3.1 | |
| 20 Sept. | Moderate rain | 28° /26° | 12.1 mm | 2.9 | |
| 21 Sept. | Moderate rain | 28° /26° | 9.3 mm | 3.6 | |
| 22 Sept. | Patchy rain possible | 28° /26° | 2.2 mm | 6 | |
| 23 Sept. | Patchy rain possible | 28° /26° | 2 mm | 6 | |
| 24 Sept. | Patchy rain possible | 28° /26° | 3.5 mm | 6 | |
| 25 Sept. | Patchy rain possible | 28° /26° | 3.8 mm | 6 | |
| 26 Sept. | Patchy rain possible | 28° /26° | 4.7 mm | 6 | |
| 27 Sept. | Patchy rain possible | 28° /27° | 3.2 mm | 6 | |
| 28 Sept. | Patchy rain possible | 28° /26° | 2.2 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /26° | 3.7 mm | 6 | |
| 30 Sept. | Patchy rain possible | 28° /26° | 2.3 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Southern 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 Southern forecast closer to your planned date for the most up-to-date weather information.
Change Month
Southern in September - FAQ
What are the expected maximum and minimum temperatures in Southern during September?
During September, expect a variety of temperatures with highs around 28° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Southern during September?
Significant rainfall exceeding 469.2 mm is expected in Southern during September, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Southern during September?
The average wind speed in Southern during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Southern
Explore the daily rainfall trends and prepare for Southerns September weather 💧
UV exposure in Southern during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in Southern
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Top locations in Southern
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