Average annual temperature is 26.5 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 44 days
Number of rainy days: 321 days
Look at detailed online map of Kalawelwala
* Weather data for Kalawelwala 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) | 31.9 | 33.5 | 33.1 | 34.4 | 34.8 | 33.9 | 33.4 | 35.8 | 31.8 | 31.2 | 31.0 | 30.9 |
| Average daytime temperature (°C) | 30.7 | 31.1 | 31.3 | 32.2 | 31.6 | 32.4 | 31.5 | 33.9 | 29.9 | 29.3 | 29.7 | 29.5 |
| Average temperature (°C) | 25.3 | 25.7 | 26.4 | 27.0 | 27.5 | 28.0 | 27.5 | 28.6 | 25.9 | 25.3 | 25.2 | 25.6 |
| Average night temperature (°C) | 21.1 | 21.9 | 22.9 | 23.5 | 24.7 | 25.0 | 24.6 | 25.0 | 23.5 | 22.8 | 22.6 | 23.0 |
| Absolute minimum temperature (°C) | 18.1 | 20.2 | 21.2 | 22.5 | 23.6 | 23.5 | 23.1 | 23.3 | 22.8 | 21.9 | 21.7 | 21.8 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.4 | 9.5 | 9.8 | 10.1 | 9.3 | 10.8 | 9.9 | 10.9 | 8.7 | 7.1 | 7.6 | 7.7 |
| Precipitation (mm) | 106 | 145 | 186 | 149 | 106 | 41 | 59 | 26 | 187 | 388 | 424 | 331 |
| Sunny days | 11 | 7 | 2 | 0 | 4 | 3 | 6 | 8 | 0 | 0 | 0 | 3 |
| Rainy days | 20 | 21 | 29 | 30 | 27 | 27 | 25 | 23 | 30 | 31 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kalawelwala is at