Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 47 days
Number of rainy days: 318 days
Look at detailed online map of Sella Katharagama
* Weather data for Sella Katharagama 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) | 31.5 | 31.9 | 35.9 | 36.5 | 37.2 | 37.4 | 37.1 | 39.3 | 32.9 | 31.0 | 30.5 | 30.0 |
| Average daytime temperature (°C) | 29.8 | 30.0 | 32.0 | 33.7 | 32.7 | 36.0 | 35.0 | 36.5 | 31.1 | 29.6 | 29.1 | 28.7 |
| Average temperature (°C) | 25.3 | 25.5 | 26.6 | 27.5 | 27.8 | 29.7 | 29.1 | 29.7 | 26.6 | 25.3 | 25.1 | 25.3 |
| Average night temperature (°C) | 22.2 | 22.3 | 23.0 | 23.7 | 24.7 | 25.6 | 25.2 | 25.2 | 23.9 | 22.8 | 22.8 | 23.1 |
| Absolute minimum temperature (°C) | 21.1 | 21.1 | 21.8 | 22.5 | 23.3 | 24.5 | 23.5 | 23.8 | 22.9 | 21.9 | 22.2 | 22.4 |
| 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) | 9.4 | 9.8 | 9.8 | 9.7 | 9.4 | 10.8 | 10.0 | 11.1 | 9.1 | 8.1 | 7.5 | 7.9 |
| Precipitation (mm) | 73 | 116 | 130 | 127 | 219 | 34 | 31 | 36 | 111 | 373 | 535 | 352 |
| Sunny days | 11 | 8 | 1 | 0 | 5 | 4 | 9 | 7 | 0 | 0 | 0 | 2 |
| Rainy days | 20 | 20 | 30 | 30 | 26 | 26 | 22 | 24 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sella Katharagama is at