Average annual temperature is 27.7 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 22.7 °C
Number of sunny days: 71 days
Number of rainy days: 294 days
Look at detailed online map of Allainagar West
* Weather data for Allainagar West 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) | 28.4 | 29.3 | 31.9 | 33.9 | 35.7 | 36.9 | 37.8 | 38.1 | 35.5 | 32.6 | 30.6 | 31.1 |
| Average daytime temperature (°C) | 27.2 | 27.8 | 29.4 | 31.3 | 32.7 | 35.3 | 35.8 | 36.1 | 33.1 | 30.3 | 28.9 | 28.5 |
| Average temperature (°C) | 25.6 | 25.9 | 27.0 | 28.1 | 28.5 | 30.2 | 30.2 | 29.8 | 28.2 | 26.6 | 26.1 | 26.3 |
| Average night temperature (°C) | 24.0 | 24.0 | 24.6 | 25.2 | 25.9 | 26.9 | 26.7 | 26.1 | 25.4 | 24.0 | 23.9 | 24.4 |
| Absolute minimum temperature (°C) | 22.7 | 23.0 | 23.3 | 23.5 | 24.1 | 25.9 | 25.8 | 24.9 | 23.8 | 22.9 | 22.8 | 23.4 |
| 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) | 9.3 | 9.8 | 10.7 | 10.7 | 9.3 | 10.6 | 9.5 | 11.1 | 9.9 | 10.0 | 8.3 | 8.7 |
| Precipitation (mm) | 175 | 143 | 66 | 74 | 135 | 16 | 37 | 58 | 203 | 313 | 469 | 376 |
| Sunny days | 9 | 9 | 8 | 6 | 8 | 10 | 8 | 7 | 4 | 2 | 0 | 0 |
| Rainy days | 22 | 19 | 23 | 24 | 23 | 20 | 23 | 24 | 26 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Allainagar West is at