Average annual temperature is 27.0 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 19.0 °C
Number of sunny days: 86 days
Number of rainy days: 279 days
Look at detailed online map of Dutuwewa
* Weather data for Dutuwewa 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 | 31.4 | 35.5 | 37.2 | 35.6 | 36.1 | 38.3 | 38.5 | 35.9 | 34.0 | 31.6 | 31.0 |
| Average daytime temperature (°C) | 27.9 | 29.4 | 32.0 | 34.5 | 32.6 | 34.2 | 34.6 | 36.1 | 33.3 | 31.7 | 29.7 | 28.6 |
| Average temperature (°C) | 24.0 | 24.8 | 26.6 | 27.9 | 27.9 | 29.1 | 29.0 | 29.3 | 27.9 | 26.3 | 25.3 | 25.3 |
| Average night temperature (°C) | 21.3 | 21.6 | 23.1 | 23.9 | 25.0 | 25.8 | 25.6 | 25.2 | 24.6 | 23.5 | 22.9 | 23.1 |
| Absolute minimum temperature (°C) | 19.0 | 20.0 | 22.2 | 22.3 | 23.4 | 24.7 | 24.7 | 23.5 | 23.9 | 22.5 | 22.4 | 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 | 12.6 | 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 | 10.0 | 10.7 | 10.4 | 8.8 | 10.5 | 9.7 | 10.8 | 9.8 | 8.7 | 7.1 | 7.6 |
| Precipitation (mm) | 77 | 104 | 65 | 139 | 129 | 13 | 25 | 72 | 80 | 341 | 511 | 265 |
| Sunny days | 16 | 15 | 4 | 9 | 8 | 9 | 11 | 14 | 0 | 0 | 0 | 0 |
| Rainy days | 15 | 13 | 27 | 21 | 23 | 21 | 20 | 17 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dutuwewa is at