Average annual temperature is 26.2 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 13 days
Number of rainy days: 352 days
Look at detailed online map of Galgemandiya
* Weather data for Galgemandiya 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) | 31.7 | 32.6 | 32.0 | 32.9 | 31.4 | 30.7 | 30.2 | 30.4 | 30.4 | 31.0 | 31.0 | 32.3 |
| Average daytime temperature (°C) | 29.9 | 30.0 | 30.6 | 31.3 | 30.0 | 29.6 | 29.3 | 29.7 | 28.8 | 29.2 | 29.6 | 29.9 |
| Average temperature (°C) | 25.0 | 25.6 | 26.3 | 26.9 | 27.0 | 26.7 | 26.8 | 27.0 | 25.8 | 25.5 | 25.5 | 25.8 |
| Average night temperature (°C) | 21.1 | 22.1 | 22.9 | 23.6 | 24.6 | 24.3 | 24.4 | 24.5 | 23.7 | 23.1 | 22.8 | 22.9 |
| Absolute minimum temperature (°C) | 18.9 | 20.8 | 21.6 | 22.2 | 23.1 | 23.0 | 22.9 | 23.6 | 23.1 | 21.8 | 22.1 | 22.0 |
| 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) | 9.6 | 9.9 | 10.3 | 10.3 | 8.4 | 9.0 | 9.5 | 10.7 | 7.1 | 7.1 | 7.4 | 7.9 |
| Precipitation (mm) | 114 | 110 | 149 | 216 | 243 | 382 | 255 | 183 | 611 | 585 | 558 | 418 |
| Sunny days | 10 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 21 | 25 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Galgemandiya is at