Average annual temperature is 19.5 °C
Absolute maximum temperature: 27.9 °C
Absolute minimum temperature: 9.1 °C
Number of sunny days: 40 days
Number of rainy days: 325 days
Look at detailed online map of Walhaputhenna
* Weather data for Walhaputhenna 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) | 22.7 | 23.6 | 24.9 | 25.3 | 27.3 | 26.9 | 27.6 | 27.9 | 23.8 | 23.0 | 22.9 | 23.6 |
| Average daytime temperature (°C) | 21.7 | 22.4 | 23.1 | 23.8 | 24.2 | 25.9 | 24.9 | 26.1 | 22.5 | 21.8 | 22.0 | 22.0 |
| Average temperature (°C) | 17.7 | 18.4 | 19.0 | 19.5 | 20.6 | 21.7 | 20.6 | 21.0 | 19.4 | 18.8 | 18.7 | 19.0 |
| Average night temperature (°C) | 13.5 | 14.1 | 15.1 | 15.7 | 17.3 | 18.3 | 17.3 | 16.7 | 17.2 | 16.3 | 15.8 | 16.2 |
| Absolute minimum temperature (°C) | 9.1 | 11.1 | 13.7 | 13.8 | 15.9 | 16.9 | 14.4 | 15.1 | 15.2 | 14.4 | 13.5 | 13.2 |
| 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 | 12.5 | 12.3 | 12.2 | 12.0 | 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) | 9.5 | 9.8 | 9.7 | 9.8 | 8.9 | 10.5 | 9.3 | 10.8 | 8.0 | 7.1 | 7.2 | 7.6 |
| Precipitation (mm) | 55 | 85 | 142 | 161 | 202 | 34 | 83 | 99 | 171 | 660 | 636 | 306 |
| Sunny days | 8 | 5 | 3 | 2 | 3 | 4 | 3 | 8 | 0 | 0 | 0 | 4 |
| Rainy days | 23 | 23 | 28 | 28 | 28 | 26 | 28 | 23 | 30 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Walhaputhenna is at