Average annual temperature is 26.5 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 20.0 °C
Number of sunny days: 36 days
Number of rainy days: 329 days
Look at detailed online map of Haldanduwana West
* Weather data for Haldanduwana 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) | 30.8 | 32.6 | 33.2 | 33.3 | 31.1 | 30.3 | 29.6 | 30.3 | 29.9 | 30.5 | 31.7 | 31.7 |
| Average daytime temperature (°C) | 29.6 | 30.5 | 31.3 | 30.8 | 29.7 | 29.2 | 28.8 | 29.3 | 28.4 | 28.7 | 29.5 | 30.0 |
| Average temperature (°C) | 25.1 | 25.9 | 27.0 | 27.3 | 27.6 | 27.4 | 27.1 | 27.2 | 26.2 | 25.8 | 25.6 | 26.2 |
| Average night temperature (°C) | 21.9 | 22.5 | 24.0 | 24.6 | 25.6 | 25.6 | 25.6 | 25.4 | 24.5 | 23.6 | 23.3 | 23.8 |
| Absolute minimum temperature (°C) | 20.0 | 20.4 | 22.9 | 23.6 | 23.6 | 24.2 | 24.3 | 24.0 | 23.6 | 22.4 | 22.6 | 22.8 |
| 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 | 12.5 | 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) | 9.5 | 9.8 | 10.6 | 10.3 | 9.1 | 9.9 | 9.8 | 10.9 | 7.7 | 7.9 | 7.5 | 8.0 |
| Precipitation (mm) | 63 | 94 | 142 | 192 | 240 | 238 | 132 | 90 | 454 | 352 | 649 | 316 |
| Sunny days | 17 | 13 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4 |
| Rainy days | 14 | 15 | 30 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haldanduwana West is at