Average annual temperature is 24.7 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: 18.8 °C
Number of sunny days: 26 days
Number of rainy days: 339 days
Look at detailed online map of Hettikanda
* Weather data for Hettikanda 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) | 29.6 | 30.8 | 31.3 | 32.4 | 30.7 | 29.7 | 29.2 | 30.8 | 28.9 | 29.5 | 29.5 | 29.6 |
| Average daytime temperature (°C) | 28.3 | 28.9 | 29.5 | 30.6 | 28.7 | 28.5 | 27.6 | 29.3 | 26.9 | 27.0 | 27.9 | 27.7 |
| Average temperature (°C) | 23.7 | 24.2 | 24.9 | 25.8 | 25.6 | 25.4 | 24.9 | 25.7 | 24.0 | 23.9 | 24.2 | 24.4 |
| Average night temperature (°C) | 20.1 | 20.6 | 21.7 | 22.5 | 23.5 | 23.3 | 22.9 | 23.1 | 22.2 | 22.1 | 21.9 | 21.9 |
| Absolute minimum temperature (°C) | 18.8 | 19.2 | 20.2 | 21.4 | 22.4 | 21.5 | 21.7 | 21.5 | 21.4 | 21.4 | 21.2 | 20.7 |
| 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) | 9.4 | 9.6 | 9.7 | 9.9 | 8.6 | 10.3 | 9.2 | 10.8 | 7.3 | 6.0 | 6.7 | 7.3 |
| Precipitation (mm) | 89 | 112 | 179 | 139 | 122 | 104 | 166 | 81 | 377 | 498 | 432 | 345 |
| Sunny days | 7 | 4 | 2 | 0 | 3 | 0 | 2 | 5 | 0 | 0 | 0 | 3 |
| Rainy days | 24 | 24 | 29 | 30 | 28 | 30 | 29 | 26 | 30 | 31 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hettikanda is at