Average annual temperature is 26.0 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 45 days
Number of rainy days: 320 days
Look at detailed online map of Gettuwana
* Weather data for Gettuwana 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) | 30.3 | 32.1 | 34.8 | 36.6 | 33.3 | 32.2 | 31.9 | 34.3 | 31.4 | 32.3 | 31.8 | 31.5 |
| Average daytime temperature (°C) | 29.1 | 30.4 | 32.8 | 33.8 | 30.9 | 30.3 | 29.7 | 32.4 | 29.0 | 29.6 | 30.0 | 29.5 |
| Average temperature (°C) | 24.3 | 25.1 | 26.8 | 27.3 | 26.8 | 26.7 | 26.3 | 27.5 | 25.3 | 25.2 | 25.1 | 25.4 |
| Average night temperature (°C) | 20.4 | 20.6 | 22.6 | 23.2 | 24.3 | 24.2 | 23.7 | 24.3 | 23.1 | 22.6 | 22.3 | 22.7 |
| Absolute minimum temperature (°C) | 17.6 | 17.6 | 21.8 | 21.6 | 23.0 | 22.8 | 22.1 | 23.1 | 22.2 | 21.8 | 21.0 | 21.7 |
| 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) | 11.7 | 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) | 9.7 | 9.8 | 10.3 | 9.8 | 9.0 | 10.1 | 9.3 | 10.8 | 8.3 | 7.8 | 7.4 | 8.1 |
| Precipitation (mm) | 68 | 87 | 116 | 159 | 170 | 102 | 160 | 37 | 193 | 376 | 564 | 275 |
| Sunny days | 15 | 14 | 2 | 2 | 0 | 0 | 1 | 8 | 0 | 0 | 0 | 3 |
| Rainy days | 16 | 14 | 29 | 28 | 31 | 30 | 30 | 23 | 30 | 31 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gettuwana is at