Average annual temperature is 27.1 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 58 days
Number of rainy days: 307 days
Look at detailed online map of Sevanagala
* Weather data for Sevanagala Sri Lanka is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.8 | 33.3 | 33.7 | 35.1 | 35.6 | 35.5 | 35.4 | 36.6 | 31.8 | 31.6 | 30.9 | 31.1 |
| Average daytime temperature (°C) | 30.8 | 31.1 | 32.0 | 33.1 | 32.4 | 34.4 | 33.3 | 35.2 | 30.3 | 29.5 | 29.6 | 29.4 |
| Average temperature (°C) | 25.5 | 26.0 | 26.8 | 27.6 | 28.1 | 29.4 | 28.6 | 29.5 | 26.6 | 25.7 | 25.5 | 25.9 |
| Average night temperature (°C) | 21.2 | 21.9 | 23.1 | 23.9 | 25.1 | 26.1 | 25.3 | 25.4 | 24.1 | 23.3 | 23.1 | 23.2 |
| Absolute minimum temperature (°C) | 18.5 | 19.4 | 20.9 | 22.8 | 24.2 | 24.1 | 23.8 | 23.9 | 22.8 | 22.6 | 21.9 | 21.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.5 | 9.5 | 9.7 | 9.7 | 9.3 | 10.8 | 10.0 | 11.0 | 8.9 | 7.0 | 7.4 | 7.7 |
| Precipitation (mm) | 59 | 114 | 150 | 137 | 159 | 31 | 40 | 38 | 223 | 495 | 513 | 329 |
| Sunny days | 10 | 8 | 2 | 2 | 6 | 5 | 11 | 9 | 1 | 0 | 0 | 4 |
| Rainy days | 21 | 20 | 29 | 28 | 25 | 25 | 20 | 22 | 29 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sevanagala is at