Average annual temperature is 20.2 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: 10.5 °C
Number of sunny days: 32 days
Number of rainy days: 333 days
Look at detailed online map of Sapukanuwa
* Weather data for Sapukanuwa 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) | 23.1 | 24.1 | 25.5 | 26.2 | 28.1 | 27.8 | 29.1 | 30.3 | 25.8 | 24.5 | 24.0 | 23.9 |
| Average daytime temperature (°C) | 21.9 | 22.7 | 23.7 | 24.7 | 25.1 | 26.6 | 26.3 | 27.5 | 24.3 | 23.2 | 23.1 | 22.7 |
| Average temperature (°C) | 18.0 | 18.8 | 19.4 | 20.2 | 21.1 | 22.0 | 21.8 | 22.0 | 20.5 | 19.7 | 19.6 | 19.6 |
| Average night temperature (°C) | 14.4 | 14.7 | 15.6 | 15.9 | 17.2 | 17.9 | 17.8 | 17.1 | 17.6 | 16.8 | 16.6 | 17.1 |
| Absolute minimum temperature (°C) | 10.5 | 11.1 | 14.7 | 14.2 | 15.0 | 16.2 | 15.5 | 15.3 | 15.7 | 14.3 | 14.7 | 15.0 |
| 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 | 12.5 | 12.3 | 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) | 9.4 | 9.3 | 9.6 | 10.0 | 8.9 | 10.4 | 9.6 | 10.9 | 8.0 | 6.8 | 7.1 | 7.2 |
| Precipitation (mm) | 80 | 127 | 113 | 126 | 154 | 92 | 81 | 105 | 243 | 436 | 597 | 394 |
| Sunny days | 7 | 6 | 3 | 3 | 3 | 1 | 5 | 2 | 0 | 0 | 0 | 2 |
| Rainy days | 24 | 22 | 28 | 27 | 28 | 29 | 26 | 29 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sapukanuwa is at