Average annual temperature is 26.7 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: 19.6 °C
Number of sunny days: 34 days
Number of rainy days: 331 days
Look at detailed online map of Weehena
* Weather data for Weehena 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) | 31.1 | 33.0 | 34.0 | 35.0 | 31.3 | 30.6 | 29.7 | 30.5 | 29.9 | 30.6 | 31.8 | 31.8 |
| Average daytime temperature (°C) | 29.8 | 30.9 | 31.6 | 31.2 | 29.9 | 29.4 | 28.8 | 29.5 | 28.5 | 28.7 | 29.5 | 29.9 |
| Average temperature (°C) | 25.1 | 26.0 | 27.2 | 27.5 | 27.8 | 27.6 | 27.2 | 27.4 | 26.4 | 25.9 | 25.7 | 26.2 |
| Average night temperature (°C) | 21.6 | 22.3 | 23.9 | 24.6 | 25.7 | 25.8 | 25.8 | 25.6 | 24.7 | 23.7 | 23.4 | 23.7 |
| Absolute minimum temperature (°C) | 19.6 | 20.5 | 22.8 | 23.6 | 24.0 | 24.5 | 24.5 | 24.1 | 23.9 | 22.5 | 22.7 | 22.6 |
| 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) | 11.7 | 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) | 9.5 | 9.7 | 10.8 | 10.3 | 9.3 | 10.3 | 9.9 | 11.0 | 8.3 | 8.3 | 7.7 | 7.9 |
| Precipitation (mm) | 91 | 77 | 124 | 147 | 236 | 214 | 166 | 67 | 394 | 332 | 515 | 262 |
| Sunny days | 17 | 12 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 |
| Rainy days | 14 | 16 | 30 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Weehena is at