Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 19.1 °C
Number of sunny days: 31 days
Number of rainy days: 334 days
Look at detailed online map of Manmunai West
* Weather data for Manmunai 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) | 29.3 | 29.6 | 33.2 | 34.9 | 36.1 | 37.9 | 39.6 | 38.5 | 35.8 | 32.6 | 32.0 | 31.3 |
| Average daytime temperature (°C) | 27.7 | 28.5 | 30.3 | 32.5 | 33.3 | 36.3 | 36.9 | 36.9 | 33.5 | 30.9 | 29.5 | 28.8 |
| Average temperature (°C) | 24.2 | 24.8 | 26.2 | 27.6 | 28.1 | 29.6 | 29.9 | 29.8 | 27.4 | 26.0 | 25.4 | 25.4 |
| Average night temperature (°C) | 21.3 | 21.8 | 22.9 | 23.8 | 24.5 | 25.2 | 25.0 | 25.0 | 24.0 | 23.3 | 23.0 | 23.1 |
| Absolute minimum temperature (°C) | 19.1 | 19.8 | 21.9 | 22.7 | 23.4 | 23.9 | 24.2 | 23.7 | 22.9 | 22.5 | 22.6 | 22.1 |
| 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 | 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 | 9.4 | 9.9 | 10.6 | 9.6 | 10.8 | 10.0 | 11.1 | 9.5 | 9.1 | 7.8 | 7.8 |
| Precipitation (mm) | 213 | 145 | 139 | 97 | 201 | 77 | 61 | 76 | 404 | 569 | 636 | 487 |
| Sunny days | 6 | 4 | 5 | 3 | 5 | 0 | 3 | 3 | 0 | 2 | 0 | 0 |
| Rainy days | 25 | 24 | 26 | 27 | 26 | 30 | 28 | 28 | 30 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Manmunai West is at