Average annual temperature is 23.3 °C
Absolute maximum temperature: 30.1 °C
Absolute minimum temperature: 17.0 °C
Number of sunny days: 4 days
Number of rainy days: 361 days
Look at detailed online map of Kosmulla
* Weather data for Kosmulla 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) | 26.9 | 28.4 | 29.5 | 30.1 | 28.4 | 27.5 | 26.9 | 27.5 | 27.0 | 28.0 | 28.7 | 29.1 |
| Average daytime temperature (°C) | 26.2 | 27.1 | 28.0 | 28.3 | 26.6 | 25.9 | 25.8 | 26.6 | 25.4 | 25.9 | 26.7 | 26.8 |
| Average temperature (°C) | 22.4 | 23.0 | 23.7 | 24.2 | 23.9 | 23.4 | 23.2 | 23.6 | 22.7 | 22.9 | 23.1 | 23.4 |
| Average night temperature (°C) | 19.0 | 19.6 | 20.5 | 21.2 | 22.2 | 21.9 | 21.4 | 21.6 | 21.2 | 20.9 | 20.9 | 20.7 |
| Absolute minimum temperature (°C) | 17.0 | 18.1 | 19.2 | 19.6 | 20.9 | 20.6 | 20.3 | 20.9 | 20.6 | 19.7 | 19.6 | 19.4 |
| 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) | 9.0 | 8.8 | 9.5 | 9.2 | 6.6 | 6.9 | 7.8 | 10.2 | 5.1 | 5.4 | 6.2 | 6.7 |
| Precipitation (mm) | 296 | 242 | 217 | 252 | 247 | 292 | 307 | 177 | 554 | 737 | 750 | 526 |
| Sunny days | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 30 | 27 | 29 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kosmulla during the most sunny months:
The largest precipitation sum in Kosmulla is at