Average annual temperature is 21.8 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: 11.6 °C
Number of sunny days: 45 days
Number of rainy days: 320 days
Look at detailed online map of Ernest Valley Watta
* Weather data for Ernest Valley Watta 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) | 22.8 | 23.7 | 26.7 | 28.6 | 28.6 | 29.4 | 29.8 | 30.9 | 28.2 | 27.0 | 25.8 | 25.9 |
| Average daytime temperature (°C) | 21.8 | 22.7 | 24.2 | 26.0 | 26.7 | 28.1 | 27.2 | 29.3 | 26.6 | 24.9 | 24.4 | 23.7 |
| Average temperature (°C) | 18.7 | 19.7 | 20.9 | 22.2 | 23.0 | 23.8 | 23.3 | 23.8 | 22.6 | 21.7 | 21.3 | 21.1 |
| Average night temperature (°C) | 15.7 | 16.2 | 17.7 | 18.6 | 19.7 | 20.7 | 20.5 | 19.6 | 19.7 | 19.1 | 18.9 | 19.2 |
| Absolute minimum temperature (°C) | 11.6 | 12.8 | 16.6 | 16.4 | 17.9 | 19.1 | 18.5 | 18.4 | 18.1 | 17.5 | 17.4 | 17.5 |
| 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 | 12.5 | 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) | 8.9 | 8.8 | 9.4 | 10.1 | 9.2 | 10.4 | 9.2 | 10.6 | 8.0 | 7.4 | 7.3 | 6.7 |
| Precipitation (mm) | 176 | 135 | 148 | 129 | 82 | 20 | 63 | 90 | 66 | 404 | 421 | 406 |
| Sunny days | 4 | 5 | 2 | 7 | 5 | 5 | 7 | 7 | 0 | 2 | 0 | 1 |
| Rainy days | 27 | 23 | 29 | 23 | 26 | 25 | 24 | 24 | 30 | 29 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ernest Valley Watta is at