Average annual temperature is 27.2 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 75 days
Number of rainy days: 290 days
Look at detailed online map of Peraru West
* Weather data for Peraru 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) | 28.6 | 30.2 | 34.3 | 36.0 | 36.1 | 36.3 | 37.1 | 38.4 | 35.9 | 33.3 | 31.5 | 31.5 |
| Average daytime temperature (°C) | 27.6 | 28.6 | 31.0 | 33.8 | 33.0 | 34.8 | 34.8 | 36.4 | 33.6 | 31.5 | 29.6 | 28.7 |
| Average temperature (°C) | 24.2 | 24.8 | 26.4 | 27.9 | 28.3 | 29.7 | 29.5 | 29.8 | 28.2 | 26.5 | 25.6 | 25.5 |
| Average night temperature (°C) | 21.3 | 21.5 | 23.0 | 24.0 | 25.4 | 26.2 | 26.0 | 25.7 | 25.1 | 23.7 | 23.3 | 23.4 |
| Absolute minimum temperature (°C) | 18.9 | 19.3 | 22.1 | 22.4 | 23.6 | 25.2 | 25.1 | 24.6 | 24.1 | 22.7 | 22.6 | 22.5 |
| 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 | 9.9 | 10.5 | 10.5 | 9.1 | 10.7 | 9.5 | 10.9 | 9.9 | 9.2 | 7.4 | 7.7 |
| Precipitation (mm) | 138 | 103 | 97 | 88 | 163 | 19 | 23 | 100 | 107 | 407 | 501 | 333 |
| Sunny days | 13 | 10 | 6 | 6 | 10 | 8 | 8 | 12 | 1 | 1 | 0 | 0 |
| Rainy days | 18 | 18 | 25 | 24 | 21 | 22 | 23 | 19 | 29 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Peraru West is at