Average annual temperature is 25.9 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 58 days
Number of rainy days: 307 days
Look at detailed online map of Helambagahawatta
* Weather data for Helambagahawatta 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) | 28.5 | 29.6 | 33.0 | 34.8 | 34.6 | 33.7 | 34.2 | 36.3 | 32.9 | 32.3 | 30.5 | 30.5 |
| Average daytime temperature (°C) | 27.3 | 28.1 | 30.0 | 32.4 | 31.5 | 32.2 | 31.6 | 34.1 | 30.8 | 30.1 | 29.1 | 28.0 |
| Average temperature (°C) | 23.1 | 23.8 | 25.3 | 26.8 | 27.1 | 27.8 | 27.3 | 28.3 | 26.4 | 25.4 | 24.6 | 24.4 |
| Average night temperature (°C) | 20.0 | 20.9 | 22.0 | 22.9 | 24.5 | 24.9 | 24.3 | 24.6 | 23.7 | 22.5 | 22.3 | 22.3 |
| Absolute minimum temperature (°C) | 18.1 | 18.9 | 21.2 | 21.5 | 22.8 | 23.6 | 22.4 | 23.7 | 22.6 | 21.2 | 21.7 | 21.3 |
| 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) | 8.5 | 8.7 | 9.5 | 10.2 | 9.3 | 10.7 | 9.8 | 11.0 | 8.7 | 8.3 | 6.9 | 6.3 |
| Precipitation (mm) | 127 | 97 | 103 | 91 | 115 | 18 | 23 | 29 | 70 | 292 | 468 | 335 |
| Sunny days | 8 | 7 | 1 | 4 | 10 | 9 | 5 | 14 | 0 | 0 | 0 | 0 |
| Rainy days | 23 | 21 | 30 | 26 | 21 | 21 | 26 | 17 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Helambagahawatta is at