Average annual temperature is 27.0 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: 19.5 °C
Number of sunny days: 77 days
Number of rainy days: 288 days
Look at detailed online map of Galkadawala
* Weather data for Galkadawala 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) | 29.5 | 30.7 | 35.3 | 36.9 | 36.2 | 36.4 | 37.7 | 38.6 | 36.3 | 34.5 | 31.8 | 32.1 |
| Average daytime temperature (°C) | 27.8 | 29.2 | 31.9 | 34.2 | 33.6 | 34.9 | 34.9 | 36.5 | 34.0 | 32.3 | 29.6 | 29.0 |
| Average temperature (°C) | 24.2 | 24.9 | 26.5 | 27.7 | 28.1 | 29.5 | 29.3 | 29.2 | 28.0 | 26.3 | 25.2 | 25.3 |
| Average night temperature (°C) | 21.7 | 21.8 | 23.1 | 23.9 | 25.0 | 26.0 | 25.9 | 25.2 | 24.8 | 23.4 | 22.7 | 23.1 |
| Absolute minimum temperature (°C) | 19.5 | 20.1 | 22.4 | 22.4 | 23.2 | 24.8 | 25.0 | 23.9 | 23.5 | 22.6 | 22.1 | 22.6 |
| 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 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 9.1 | 10.0 | 10.7 | 10.5 | 9.0 | 10.7 | 9.4 | 10.7 | 9.6 | 9.5 | 7.1 | 7.6 |
| Precipitation (mm) | 131 | 78 | 57 | 100 | 108 | 17 | 46 | 103 | 126 | 517 | 567 | 349 |
| Sunny days | 13 | 13 | 8 | 4 | 6 | 10 | 9 | 11 | 2 | 1 | 0 | 0 |
| Rainy days | 18 | 15 | 23 | 26 | 25 | 20 | 22 | 20 | 28 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Galkadawala is at