Jaffna
September
Weather in Jaffna for September 2025
Your guide to Jaffna weather in September - trends and predictions
In general, the average temperature in Jaffna 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.
Jaffna experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 187 mm.
Temperatures
Rain 🌧️
9
Dry days
21
Rainy days
0
Snow days
29°/27°
Temperatures
37 km/h
Avg max wind
80 %
Avg humidity
Jaffna Weather September
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 29° | 3 29° | 4 29° | 5  29° | 6 29° | 7  29° |
| 8 29° | 9 29° | 10 29° | 11 29° | 12  29° | 13  29° | 14 29° |
| 15  29° | 16 29° | 17  29° | 18 29° | 19 29° | 20 29° | 21 29° |
| 22 29° | 23 29° | 24 29° | 25 29° | 26 29° | 27  29° | 28 29° |
| 29 30° | 30 29° |
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Temperatures trend during September in Jaffna
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 29° /27° | 3.2 mm | 6 | |
| 2 Sept. | Light rain shower | 29° /27° | 1.7 mm | 7 | |
| 3 Sept. | Light rain shower | 29° /27° | 1.9 mm | 6 | |
| 4 Sept. | Light rain shower | 29° /27° | 2.3 mm | 6 | |
| 5 Sept. | Moderate or heavy rain shower | 29° /27° | 5.6 mm | 7 | |
| 6 Sept. | Light rain shower | 29° /27° | 3.2 mm | 7 | |
| 7 Sept. | Thundery outbreaks possible | 29° /27° | 1.3 mm | 6 | |
| 8 Sept. | Light rain shower | 29° /27° | 5.6 mm | 7 | |
| 9 Sept. | Thundery outbreaks possible | 29° /27° | 1.3 mm | 6 | |
| 10 Sept. | Patchy rain possible | 29° /27° | 2.6 mm | 6 | |
| 11 Sept. | Light rain shower | 29° /27° | 3.5 mm | 7 | |
| 12 Sept. | Overcast | 29° /27° | 0.2 mm | 7 | |
| 13 Sept. | Partly cloudy | 29° /27° | 0.7 mm | 7 | |
| 14 Sept. | Thundery outbreaks possible | 29° /27° | 1.7 mm | 6 | |
| 15 Sept. | Cloudy | 29° /27° | 1.4 mm | 6 | |
| 16 Sept. | Patchy rain possible | 29° /27° | 1.3 mm | 6 | |
| 17 Sept. | Patchy light drizzle | 29° /26° | 19.2 mm | 7 | |
| 18 Sept. | Patchy light rain | 29° /26° | 11.5 mm | 6 | |
| 19 Sept. | Patchy rain possible | 29° /27° | 1 mm | 6 | |
| 20 Sept. | Light rain shower | 29° /27° | 0.3 mm | 6 | |
| 21 Sept. | Patchy light drizzle | 29° /27° | 0.3 mm | 6 | |
| 22 Sept. | Patchy rain possible | 29° /27° | 0.7 mm | 7 | |
| 23 Sept. | Patchy rain possible | 29° /27° | 1 mm | 6 | |
| 24 Sept. | Patchy rain possible | 29° /27° | 2.5 mm | 6 | |
| 25 Sept. | Light rain shower | 29° /27° | 3.5 mm | 6 | |
| 26 Sept. | Patchy light drizzle | 29° /27° | 4 mm | 7 | |
| 27 Sept. | Patchy light rain with thunder | 29° /27° | 1 mm | 7 | |
| 28 Sept. | Patchy rain possible | 29° /25° | 6.8 mm | 6 | |
| 29 Sept. | Patchy rain possible | 30° /27° | 3.5 mm | 7 | |
| 30 Sept. | Thundery outbreaks possible | 29° /27° | 0.7 mm | 6 | |
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Important Notice
Our weather forecast for Jaffna 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 Jaffna forecast closer to your planned date for the most up-to-date weather information.
Jaffna in September - FAQ
What are the expected maximum and minimum temperatures in Jaffna during September?
During September, expect a variety of temperatures with highs around 29° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jaffna during September?
Significant rainfall exceeding 187 mm is expected in Jaffna during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jaffna during September?
The average wind speed in Jaffna during September is 37 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Jaffna
Explore the daily rainfall trends and prepare for Jaffnas September weather 💧
UV exposure in Jaffna during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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