Average annual temperature is 26.6 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 20.0 °C
Number of sunny days: 37 days
Number of rainy days: 328 days
Look at detailed online map of Kotagoda
* Weather data for Kotagoda 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) | 29.2 | 30.4 | 32.5 | 34.8 | 35.3 | 36.9 | 38.3 | 39.5 | 36.3 | 32.1 | 30.9 | 30.8 |
| Average daytime temperature (°C) | 27.6 | 28.1 | 29.7 | 31.7 | 32.4 | 35.3 | 35.4 | 37.5 | 33.2 | 30.4 | 29.4 | 28.5 |
| Average temperature (°C) | 24.1 | 24.5 | 25.5 | 26.8 | 27.5 | 29.0 | 28.9 | 30.0 | 27.6 | 25.6 | 25.0 | 24.9 |
| Average night temperature (°C) | 21.5 | 22.0 | 22.4 | 23.3 | 24.0 | 24.7 | 24.4 | 24.9 | 24.3 | 22.8 | 22.6 | 22.8 |
| Absolute minimum temperature (°C) | 20.0 | 20.4 | 21.4 | 22.1 | 22.8 | 23.8 | 23.3 | 24.0 | 22.8 | 21.8 | 21.9 | 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) | 8.9 | 8.9 | 9.4 | 10.0 | 9.4 | 10.4 | 9.4 | 10.7 | 9.3 | 8.1 | 7.1 | 6.8 |
| Precipitation (mm) | 149 | 175 | 143 | 130 | 154 | 87 | 75 | 51 | 147 | 479 | 554 | 533 |
| Sunny days | 6 | 6 | 4 | 2 | 7 | 2 | 5 | 3 | 2 | 0 | 0 | 0 |
| Rainy days | 25 | 22 | 27 | 28 | 24 | 28 | 26 | 28 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kotagoda is at