Average annual temperature is 24.8 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 43 days
Number of rainy days: 322 days
Look at detailed online map of Dewalegoda
* Weather data for Dewalegoda 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) | 27.0 | 28.1 | 30.8 | 32.3 | 32.5 | 33.0 | 34.7 | 36.8 | 30.7 | 28.8 | 28.4 | 28.1 |
| Average daytime temperature (°C) | 25.8 | 26.5 | 27.7 | 29.7 | 30.1 | 31.6 | 31.3 | 33.7 | 29.4 | 27.7 | 27.3 | 26.6 |
| Average temperature (°C) | 22.6 | 23.1 | 24.1 | 25.3 | 25.9 | 26.7 | 26.3 | 27.4 | 25.0 | 24.0 | 23.8 | 23.7 |
| Average night temperature (°C) | 20.2 | 20.6 | 21.5 | 22.1 | 22.8 | 22.9 | 22.4 | 22.5 | 22.1 | 21.7 | 21.6 | 21.9 |
| Absolute minimum temperature (°C) | 18.0 | 18.4 | 20.6 | 20.9 | 21.8 | 21.9 | 21.2 | 21.5 | 21.6 | 20.6 | 20.9 | 20.8 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 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) | 9.1 | 9.0 | 9.4 | 10.1 | 9.3 | 10.7 | 9.9 | 10.9 | 9.2 | 8.4 | 7.4 | 7.4 |
| Precipitation (mm) | 104 | 139 | 134 | 145 | 219 | 160 | 150 | 104 | 463 | 631 | 565 | 397 |
| Sunny days | 9 | 8 | 4 | 2 | 6 | 3 | 4 | 6 | 0 | 0 | 0 | 1 |
| Rainy days | 22 | 20 | 27 | 28 | 25 | 27 | 27 | 25 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dewalegoda is at