Average annual temperature is 27.0 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 18.6 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of Erupotana
* Weather data for Erupotana 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) | 28.6 | 30.2 | 35.8 | 36.8 | 36.0 | 37.5 | 38.7 | 38.4 | 35.6 | 34.1 | 31.4 | 31.3 |
| Average daytime temperature (°C) | 27.6 | 28.8 | 31.7 | 34.2 | 33.0 | 34.8 | 35.1 | 36.4 | 33.7 | 31.9 | 29.3 | 28.5 |
| Average temperature (°C) | 23.9 | 24.6 | 26.5 | 27.9 | 28.1 | 29.4 | 29.3 | 29.3 | 28.1 | 26.4 | 25.2 | 25.2 |
| Average night temperature (°C) | 21.1 | 21.4 | 23.0 | 23.8 | 25.0 | 26.0 | 25.7 | 25.2 | 24.7 | 23.4 | 22.8 | 23.0 |
| Absolute minimum temperature (°C) | 18.6 | 19.1 | 22.1 | 21.9 | 23.2 | 24.9 | 24.9 | 24.2 | 23.9 | 22.4 | 22.1 | 22.5 |
| 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 | 11.8 | 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) | 9.2 | 10.1 | 10.8 | 10.4 | 9.0 | 10.5 | 9.7 | 10.7 | 9.8 | 8.9 | 6.8 | 7.2 |
| Precipitation (mm) | 101 | 92 | 53 | 149 | 130 | 20 | 32 | 102 | 89 | 374 | 448 | 298 |
| Sunny days | 16 | 14 | 5 | 8 | 7 | 5 | 10 | 13 | 1 | 0 | 0 | 1 |
| Rainy days | 15 | 14 | 26 | 22 | 24 | 25 | 21 | 18 | 29 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Erupotana is at