Average annual temperature is 26.7 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 72 days
Number of rainy days: 293 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) | 28.9 | 30.7 | 35.2 | 36.7 | 35.7 | 35.4 | 37.1 | 37.6 | 36.1 | 34.0 | 31.0 | 31.2 |
| Average daytime temperature (°C) | 27.6 | 29.0 | 31.8 | 34.1 | 32.5 | 33.9 | 34.0 | 35.6 | 33.4 | 31.8 | 29.4 | 28.5 |
| Average temperature (°C) | 23.7 | 24.5 | 26.3 | 27.5 | 27.7 | 28.9 | 28.8 | 28.9 | 27.8 | 26.0 | 25.0 | 25.0 |
| Average night temperature (°C) | 20.8 | 21.2 | 22.7 | 23.4 | 24.8 | 25.6 | 25.5 | 24.9 | 24.5 | 23.1 | 22.5 | 22.8 |
| Absolute minimum temperature (°C) | 17.6 | 19.2 | 21.6 | 21.4 | 22.9 | 24.5 | 24.5 | 23.3 | 23.5 | 22.0 | 21.9 | 22.3 |
| 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 | 10.6 | 10.3 | 8.9 | 10.5 | 9.6 | 10.7 | 9.7 | 8.5 | 6.9 | 7.2 |
| Precipitation (mm) | 106 | 104 | 53 | 168 | 152 | 16 | 25 | 100 | 75 | 411 | 536 | 301 |
| Sunny days | 14 | 13 | 6 | 6 | 6 | 6 | 7 | 13 | 1 | 0 | 0 | 0 |
| Rainy days | 17 | 15 | 25 | 24 | 25 | 24 | 24 | 18 | 29 | 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