Average annual temperature is 26.8 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 18.7 °C
Number of sunny days: 82 days
Number of rainy days: 283 days
Look at detailed online map of Deketipotana
* Weather data for Deketipotana 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) | 29.1 | 31.1 | 34.1 | 36.0 | 35.8 | 35.3 | 36.8 | 37.7 | 35.6 | 33.7 | 31.2 | 31.2 |
| Average daytime temperature (°C) | 27.9 | 29.2 | 31.5 | 33.7 | 32.7 | 34.1 | 34.0 | 35.7 | 33.1 | 31.6 | 29.7 | 28.6 |
| Average temperature (°C) | 24.0 | 24.8 | 26.5 | 27.7 | 27.8 | 28.9 | 28.7 | 29.1 | 27.7 | 26.2 | 25.3 | 25.3 |
| Average night temperature (°C) | 21.0 | 21.4 | 22.9 | 23.7 | 24.8 | 25.4 | 25.3 | 24.9 | 24.4 | 23.2 | 22.8 | 22.9 |
| Absolute minimum temperature (°C) | 18.7 | 19.1 | 21.8 | 22.3 | 23.3 | 24.3 | 24.4 | 23.7 | 23.7 | 22.0 | 22.0 | 21.8 |
| 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) | 9.2 | 9.9 | 10.6 | 10.4 | 9.0 | 10.7 | 9.6 | 10.8 | 9.6 | 8.9 | 7.1 | 7.3 |
| Precipitation (mm) | 122 | 115 | 73 | 115 | 144 | 19 | 34 | 96 | 84 | 382 | 507 | 304 |
| Sunny days | 14 | 12 | 7 | 6 | 11 | 9 | 7 | 15 | 1 | 0 | 0 | 0 |
| Rainy days | 17 | 16 | 24 | 24 | 20 | 21 | 24 | 16 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Deketipotana is at