Average annual temperature is 24.4 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: 17.8 °C
Number of sunny days: 50 days
Number of rainy days: 315 days
Look at detailed online map of Ganimayaya
* Weather data for Ganimayaya 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) | 27.3 | 28.3 | 31.6 | 33.5 | 32.0 | 31.7 | 31.4 | 33.9 | 30.8 | 30.3 | 29.2 | 28.9 |
| Average daytime temperature (°C) | 26.0 | 26.8 | 28.7 | 30.8 | 29.7 | 30.0 | 29.0 | 31.8 | 28.4 | 28.4 | 27.7 | 26.5 |
| Average temperature (°C) | 22.0 | 22.7 | 24.1 | 25.5 | 25.6 | 25.9 | 25.3 | 26.5 | 24.5 | 24.0 | 23.5 | 23.2 |
| Average night temperature (°C) | 19.4 | 20.0 | 20.9 | 21.8 | 23.1 | 23.4 | 22.7 | 23.1 | 22.2 | 21.3 | 21.3 | 21.2 |
| Absolute minimum temperature (°C) | 17.8 | 18.7 | 20.0 | 20.0 | 21.6 | 22.0 | 20.8 | 22.4 | 20.9 | 19.9 | 20.5 | 20.6 |
| 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 | 12.5 | 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) | 9.1 | 9.3 | 10.0 | 10.3 | 9.4 | 10.6 | 9.7 | 11.0 | 8.6 | 8.5 | 7.5 | 7.2 |
| Precipitation (mm) | 96 | 84 | 84 | 123 | 108 | 29 | 42 | 17 | 76 | 276 | 446 | 293 |
| Sunny days | 9 | 8 | 3 | 3 | 5 | 3 | 3 | 15 | 0 | 1 | 0 | 0 |
| Rainy days | 22 | 20 | 28 | 27 | 26 | 27 | 28 | 16 | 30 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ganimayaya is at