Average annual temperature is 24.1 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: 16.0 °C
Number of sunny days: 51 days
Number of rainy days: 314 days
Look at detailed online map of Watapuluwa West
* Weather data for Watapuluwa West 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) | 28.0 | 29.5 | 33.1 | 34.1 | 30.7 | 30.2 | 29.8 | 32.2 | 29.6 | 29.3 | 28.7 | 28.9 |
| Average daytime temperature (°C) | 26.5 | 27.6 | 30.0 | 31.3 | 28.8 | 28.9 | 27.7 | 30.7 | 27.8 | 27.4 | 27.6 | 27.2 |
| Average temperature (°C) | 22.3 | 23.2 | 24.6 | 25.4 | 24.7 | 25.1 | 24.3 | 25.3 | 23.8 | 23.4 | 23.4 | 23.6 |
| Average night temperature (°C) | 18.9 | 19.5 | 20.6 | 20.9 | 21.4 | 22.2 | 21.5 | 21.2 | 21.0 | 20.5 | 20.8 | 21.2 |
| Absolute minimum temperature (°C) | 16.0 | 16.8 | 19.2 | 19.6 | 19.9 | 20.8 | 19.1 | 19.4 | 18.6 | 18.9 | 19.6 | 20.1 |
| 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 | 12.5 | 12.5 | 12.5 | 12.4 | 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) | 9.4 | 9.7 | 10.1 | 10.1 | 9.2 | 10.2 | 9.2 | 10.8 | 8.6 | 7.6 | 7.2 | 7.9 |
| Precipitation (mm) | 40 | 50 | 49 | 127 | 104 | 74 | 136 | 33 | 111 | 346 | 545 | 229 |
| Sunny days | 12 | 14 | 6 | 5 | 1 | 0 | 1 | 6 | 1 | 1 | 0 | 4 |
| Rainy days | 19 | 14 | 25 | 25 | 30 | 30 | 30 | 25 | 29 | 30 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Watapuluwa West is at