Average annual temperature is 24.6 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 16.2 °C
Number of sunny days: 42 days
Number of rainy days: 323 days
Look at detailed online map of Itanawatte
* Weather data for Itanawatte 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) | 26.7 | 27.7 | 30.2 | 31.6 | 33.0 | 33.7 | 36.3 | 37.3 | 31.0 | 29.2 | 29.0 | 28.8 |
| Average daytime temperature (°C) | 25.3 | 26.1 | 27.4 | 29.4 | 30.3 | 32.5 | 33.1 | 34.8 | 29.7 | 28.2 | 27.5 | 26.6 |
| Average temperature (°C) | 21.8 | 22.5 | 23.5 | 24.7 | 25.6 | 26.8 | 27.1 | 27.7 | 24.8 | 23.9 | 23.5 | 23.3 |
| Average night temperature (°C) | 19.1 | 19.7 | 20.6 | 21.0 | 22.0 | 22.5 | 22.5 | 22.5 | 21.6 | 21.0 | 20.9 | 21.3 |
| Absolute minimum temperature (°C) | 16.2 | 16.9 | 20.0 | 20.1 | 21.4 | 21.8 | 21.8 | 21.5 | 20.9 | 19.9 | 20.2 | 20.2 |
| 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) | 11.8 | 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) | 8.4 | 8.7 | 8.9 | 10.1 | 9.3 | 10.6 | 9.7 | 10.8 | 8.7 | 8.2 | 7.1 | 6.7 |
| Precipitation (mm) | 177 | 180 | 161 | 95 | 172 | 76 | 38 | 117 | 470 | 652 | 468 | 544 |
| Sunny days | 5 | 4 | 6 | 3 | 7 | 5 | 7 | 5 | 0 | 0 | 0 | 0 |
| Rainy days | 26 | 24 | 25 | 27 | 24 | 25 | 24 | 26 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Itanawatte is at