Average annual temperature is 26.0 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 7 days
Number of rainy days: 358 days
Look at detailed online map of Halgasmulla
* Weather data for Halgasmulla 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) | 30.0 | 32.6 | 32.0 | 32.2 | 30.7 | 30.2 | 29.8 | 30.3 | 30.0 | 30.5 | 31.2 | 31.8 |
| Average daytime temperature (°C) | 28.7 | 29.8 | 30.2 | 30.5 | 29.4 | 29.1 | 28.9 | 29.4 | 28.3 | 28.3 | 29.2 | 29.4 |
| Average temperature (°C) | 24.8 | 25.4 | 26.1 | 26.7 | 27.0 | 26.7 | 26.4 | 26.8 | 25.7 | 25.3 | 25.4 | 25.7 |
| Average night temperature (°C) | 21.7 | 22.3 | 22.9 | 23.7 | 25.0 | 24.6 | 24.3 | 24.5 | 23.7 | 23.2 | 22.8 | 23.1 |
| Absolute minimum temperature (°C) | 19.4 | 20.8 | 21.6 | 22.4 | 23.1 | 23.1 | 22.7 | 23.5 | 23.0 | 22.0 | 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 9.7 | 10.2 | 10.3 | 8.9 | 10.4 | 9.6 | 10.8 | 7.6 | 6.8 | 7.9 | 7.9 |
| Precipitation (mm) | 136 | 171 | 150 | 146 | 212 | 264 | 244 | 167 | 561 | 507 | 552 | 402 |
| Sunny days | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 28 | 25 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Halgasmulla is at