Average annual temperature is 24.0 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 43 days
Number of rainy days: 322 days
Look at detailed online map of Dullewa
* Weather data for Dullewa 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) | 27.5 | 28.9 | 32.1 | 33.3 | 30.8 | 29.2 | 28.9 | 31.9 | 28.6 | 29.4 | 29.6 | 28.9 |
| Average daytime temperature (°C) | 26.1 | 27.4 | 29.6 | 30.7 | 28.4 | 27.8 | 26.9 | 29.5 | 26.9 | 27.4 | 27.7 | 27.2 |
| Average temperature (°C) | 22.1 | 23.0 | 24.5 | 25.1 | 24.7 | 24.6 | 24.1 | 25.1 | 23.6 | 23.5 | 23.6 | 23.6 |
| Average night temperature (°C) | 18.6 | 18.7 | 20.6 | 21.0 | 22.5 | 22.5 | 22.1 | 22.3 | 21.7 | 21.2 | 20.8 | 21.1 |
| Absolute minimum temperature (°C) | 15.8 | 15.0 | 19.6 | 19.2 | 21.5 | 21.5 | 20.8 | 21.6 | 20.9 | 20.2 | 18.6 | 19.2 |
| 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) | 9.4 | 9.8 | 10.2 | 10.1 | 9.3 | 10.3 | 9.3 | 10.8 | 8.4 | 7.8 | 7.7 | 7.9 |
| Precipitation (mm) | 52 | 53 | 91 | 196 | 159 | 112 | 154 | 48 | 178 | 424 | 669 | 289 |
| Sunny days | 16 | 11 | 4 | 3 | 1 | 0 | 0 | 3 | 0 | 1 | 0 | 4 |
| Rainy days | 15 | 17 | 27 | 27 | 30 | 30 | 31 | 28 | 30 | 30 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dullewa is at