Average annual temperature is 27.3 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 34 days
Number of rainy days: 331 days
Look at detailed online map of Kumana
* Weather data for Kumana 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) | 31.6 | 30.7 | 31.8 | 33.3 | 36.0 | 36.6 | 38.5 | 37.7 | 33.3 | 31.7 | 30.9 | 30.9 |
| Average daytime temperature (°C) | 29.1 | 29.1 | 30.0 | 31.5 | 32.3 | 34.8 | 35.2 | 35.1 | 31.4 | 30.1 | 29.5 | 29.3 |
| Average temperature (°C) | 25.3 | 25.6 | 26.7 | 27.9 | 28.3 | 29.7 | 29.5 | 29.5 | 27.3 | 26.1 | 25.7 | 25.8 |
| Average night temperature (°C) | 22.4 | 22.8 | 23.7 | 24.8 | 25.7 | 26.3 | 25.8 | 25.8 | 24.6 | 23.5 | 23.2 | 23.4 |
| Absolute minimum temperature (°C) | 21.1 | 21.6 | 22.8 | 23.4 | 24.4 | 25.5 | 24.4 | 24.7 | 23.4 | 22.7 | 22.7 | 22.9 |
| 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 | 11.8 |
| 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) | 9.5 | 10.3 | 10.2 | 10.3 | 9.7 | 10.8 | 10.0 | 11.1 | 9.1 | 8.9 | 8.1 | 8.4 |
| Precipitation (mm) | 113 | 75 | 84 | 94 | 101 | 26 | 35 | 42 | 119 | 357 | 489 | 319 |
| Sunny days | 5 | 9 | 5 | 2 | 5 | 1 | 3 | 2 | 1 | 0 | 0 | 1 |
| Rainy days | 26 | 19 | 26 | 28 | 26 | 29 | 28 | 29 | 29 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kumana is at