Average annual temperature is 26.6 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 64 days
Number of rainy days: 301 days
Look at detailed online map of Rajjallegama
* Weather data for Rajjallegama 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) | 29.9 | 31.2 | 34.1 | 35.3 | 33.9 | 33.7 | 35.6 | 36.8 | 33.8 | 33.2 | 32.0 | 30.8 |
| Average daytime temperature (°C) | 28.5 | 29.5 | 31.8 | 33.5 | 31.6 | 32.2 | 32.1 | 34.7 | 31.5 | 31.2 | 30.3 | 29.1 |
| Average temperature (°C) | 24.1 | 25.0 | 26.7 | 27.6 | 27.5 | 28.0 | 27.9 | 28.7 | 26.9 | 26.1 | 25.5 | 25.5 |
| Average night temperature (°C) | 20.6 | 21.1 | 23.0 | 23.8 | 24.7 | 25.1 | 25.0 | 25.0 | 24.0 | 23.3 | 23.0 | 23.2 |
| Absolute minimum temperature (°C) | 18.1 | 19.1 | 21.6 | 22.5 | 23.4 | 23.9 | 23.6 | 24.2 | 23.2 | 22.1 | 22.3 | 22.5 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 11.9 | 11.8 | 11.7 |
| 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) | 9.3 | 9.9 | 10.7 | 10.2 | 9.0 | 10.5 | 9.6 | 11.0 | 9.3 | 8.6 | 7.3 | 7.7 |
| Precipitation (mm) | 81 | 119 | 81 | 135 | 110 | 23 | 40 | 36 | 83 | 238 | 463 | 280 |
| Sunny days | 15 | 13 | 5 | 4 | 2 | 2 | 8 | 12 | 0 | 1 | 1 | 1 |
| Rainy days | 16 | 15 | 26 | 26 | 29 | 28 | 23 | 19 | 30 | 30 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rajjallegama is at