Average annual temperature is 26.2 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: 17.2 °C
Number of sunny days: 60 days
Number of rainy days: 305 days
Look at detailed online map of Unalewa
* Weather data for Unalewa 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) | 28.6 | 30.3 | 33.8 | 35.1 | 34.0 | 33.9 | 35.0 | 36.8 | 34.3 | 32.4 | 30.8 | 31.0 |
| Average daytime temperature (°C) | 27.7 | 28.7 | 30.9 | 33.1 | 31.4 | 32.4 | 32.3 | 34.9 | 31.6 | 30.5 | 29.5 | 28.4 |
| Average temperature (°C) | 23.6 | 24.4 | 26.1 | 27.4 | 27.2 | 27.8 | 27.5 | 28.5 | 26.6 | 25.6 | 25.1 | 24.9 |
| Average night temperature (°C) | 20.2 | 21.0 | 22.7 | 23.5 | 24.5 | 24.7 | 24.5 | 24.6 | 23.7 | 22.8 | 22.6 | 22.7 |
| Absolute minimum temperature (°C) | 17.2 | 19.2 | 21.5 | 21.9 | 23.3 | 23.3 | 23.6 | 23.7 | 22.8 | 21.9 | 21.9 | 21.8 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 11.9 | 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) | 9.2 | 9.6 | 10.4 | 10.3 | 9.0 | 10.8 | 9.8 | 10.9 | 9.3 | 8.3 | 7.2 | 7.4 |
| Precipitation (mm) | 104 | 90 | 74 | 129 | 133 | 20 | 38 | 49 | 62 | 295 | 493 | 267 |
| Sunny days | 13 | 10 | 5 | 4 | 3 | 8 | 7 | 10 | 0 | 0 | 0 | 0 |
| Rainy days | 18 | 18 | 26 | 26 | 28 | 22 | 24 | 21 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Unalewa is at