Climate averages 1991–2020
Weather in Sri Lanka in September
In September, average daytime highs across the 12 cities listed in Sri Lanka range from 27.1°C in Kandy to 33.2°C in Batticaloa. Monthly rainfall ranges from 42 mm in Point Pedro to 240 mm in Galle.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Sri Lanka
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Colombo | 28.5°C24.5°C | 24.5°C | 223 | 24.5 |
| Dehiwala-Mount Lavinia | 28.2°C24.5°C | 24.5°C | 232 | 24.3 |
| Jaffna | 30.1°C26.9°C | 26.9°C | 67 | 12.1 |
| Negombo | 28.6°C24.9°C | 24.9°C | 215 | 25.3 |
| Kandy | 27.1°C21.0°C | 21.0°C | 121 | 19.2 |
| Trincomalee | 33.0°C25.8°C | 25.8°C | 65 | 10.7 |
| Kalmunai | 32.0°C25.9°C | 25.9°C | 67 | 13.6 |
| Galle | 27.7°C24.7°C | 24.7°C | 240 | 26.5 |
| Point Pedro | 30.8°C26.7°C | 26.7°C | 42 | 8.5 |
| Batticaloa | 33.2°C25.6°C | 25.6°C | 48 | 11.1 |
| Ambalantota | 30.9°C25.1°C | 25.1°C | 87 | 16.6 |
| Matara | 28.2°C24.6°C | 24.6°C | 196 | 26.2 |
A rain day is a local calendar day with at least 1 mm of precipitation.