Average annual temperature is 25.7 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 43 days
Number of rainy days: 322 days
Look at detailed online map of Welipitiya West
* Weather data for Welipitiya 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) | 30.3 | 31.3 | 32.2 | 33.2 | 32.8 | 32.7 | 31.6 | 33.6 | 29.7 | 30.2 | 30.1 | 29.9 |
| Average daytime temperature (°C) | 29.1 | 29.4 | 29.9 | 31.3 | 30.2 | 31.2 | 29.8 | 32.0 | 28.1 | 27.9 | 28.6 | 28.1 |
| Average temperature (°C) | 24.2 | 24.6 | 25.4 | 26.4 | 26.8 | 27.4 | 26.6 | 27.6 | 25.3 | 24.7 | 24.7 | 24.9 |
| Average night temperature (°C) | 20.4 | 20.9 | 22.1 | 22.9 | 24.4 | 24.9 | 24.2 | 24.6 | 23.4 | 22.6 | 22.3 | 22.4 |
| Absolute minimum temperature (°C) | 18.4 | 19.0 | 20.4 | 21.9 | 23.0 | 23.7 | 23.1 | 23.0 | 22.7 | 21.6 | 21.3 | 21.0 |
| 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 | 9.6 | 10.0 | 8.9 | 10.6 | 9.5 | 10.8 | 8.3 | 6.7 | 7.0 | 7.4 |
| Precipitation (mm) | 78 | 124 | 163 | 119 | 102 | 30 | 69 | 36 | 234 | 492 | 457 | 327 |
| Sunny days | 10 | 7 | 1 | 1 | 6 | 1 | 6 | 10 | 0 | 0 | 0 | 1 |
| Rainy days | 21 | 21 | 30 | 29 | 25 | 29 | 25 | 21 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Welipitiya West is at