Average annual temperature is 27.0 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 18.7 °C
Number of sunny days: 83 days
Number of rainy days: 282 days
Look at detailed online map of Maha Ehetuwewa
* Weather data for Maha Ehetuwewa 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) | 29.7 | 32.0 | 35.2 | 36.2 | 34.8 | 34.9 | 37.8 | 38.0 | 34.4 | 34.3 | 32.1 | 31.3 |
| Average daytime temperature (°C) | 28.6 | 30.2 | 32.6 | 34.2 | 32.3 | 33.4 | 33.5 | 35.6 | 32.5 | 31.7 | 30.0 | 29.3 |
| Average temperature (°C) | 24.1 | 25.0 | 26.8 | 27.8 | 28.0 | 28.9 | 28.7 | 29.3 | 27.8 | 26.3 | 25.4 | 25.5 |
| Average night temperature (°C) | 20.7 | 21.0 | 23.0 | 23.8 | 25.1 | 26.0 | 25.7 | 25.4 | 24.6 | 23.4 | 22.9 | 23.0 |
| Absolute minimum temperature (°C) | 18.7 | 18.9 | 21.8 | 22.3 | 23.5 | 24.9 | 24.9 | 24.8 | 23.6 | 22.4 | 22.1 | 22.4 |
| 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 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 9.3 | 9.8 | 10.8 | 10.4 | 8.9 | 10.5 | 9.5 | 10.9 | 9.8 | 8.7 | 7.2 | 7.7 |
| Precipitation (mm) | 77 | 154 | 90 | 130 | 92 | 25 | 37 | 51 | 72 | 308 | 453 | 280 |
| Sunny days | 17 | 14 | 5 | 7 | 5 | 9 | 10 | 15 | 0 | 0 | 0 | 1 |
| Rainy days | 14 | 14 | 26 | 23 | 26 | 21 | 21 | 16 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Maha Ehetuwewa is at