Average annual temperature is 23.6 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: 13.6 °C
Number of sunny days: 48 days
Number of rainy days: 317 days
Look at detailed online map of Welanvita
* Weather data for Welanvita 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) | 28.2 | 28.3 | 31.1 | 31.7 | 30.6 | 32.5 | 32.5 | 32.9 | 29.1 | 27.5 | 27.5 | 28.2 |
| Average daytime temperature (°C) | 27.0 | 27.1 | 28.2 | 29.2 | 28.2 | 30.7 | 29.6 | 31.4 | 27.2 | 25.7 | 25.9 | 26.2 |
| Average temperature (°C) | 22.1 | 22.5 | 23.4 | 24.0 | 24.3 | 25.6 | 24.8 | 25.7 | 23.4 | 22.4 | 22.5 | 22.9 |
| Average night temperature (°C) | 17.5 | 17.9 | 19.3 | 20.2 | 20.9 | 21.4 | 20.9 | 21.1 | 20.9 | 20.1 | 19.8 | 20.0 |
| Absolute minimum temperature (°C) | 13.6 | 13.8 | 17.6 | 18.4 | 19.3 | 20.1 | 19.3 | 19.8 | 19.6 | 19.1 | 17.9 | 17.6 |
| 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) | 9.7 | 10.0 | 10.0 | 9.9 | 9.2 | 10.8 | 9.8 | 11.1 | 9.0 | 7.8 | 7.6 | 8.2 |
| Precipitation (mm) | 86 | 109 | 113 | 165 | 179 | 67 | 71 | 43 | 103 | 485 | 681 | 330 |
| Sunny days | 11 | 6 | 1 | 1 | 5 | 6 | 3 | 11 | 0 | 0 | 0 | 4 |
| Rainy days | 20 | 22 | 30 | 29 | 26 | 24 | 28 | 20 | 30 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Welanvita is at