Average annual temperature is 27.1 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 37 days
Number of rainy days: 328 days
Look at detailed online map of Thottama
* Weather data for Thottama 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) | 29.4 | 30.0 | 32.8 | 34.8 | 34.9 | 37.1 | 38.8 | 38.9 | 37.1 | 33.2 | 31.1 | 31.2 |
| Average daytime temperature (°C) | 28.0 | 28.4 | 30.0 | 31.8 | 33.0 | 35.3 | 35.5 | 37.0 | 34.2 | 31.0 | 29.7 | 28.9 |
| Average temperature (°C) | 24.3 | 24.8 | 25.9 | 27.2 | 28.0 | 29.3 | 29.3 | 30.3 | 28.3 | 26.2 | 25.6 | 25.4 |
| Average night temperature (°C) | 21.5 | 22.0 | 22.8 | 23.8 | 24.4 | 25.2 | 25.0 | 25.5 | 25.0 | 23.3 | 23.1 | 23.2 |
| Absolute minimum temperature (°C) | 19.4 | 20.4 | 22.1 | 22.5 | 23.0 | 24.3 | 23.9 | 24.2 | 23.3 | 22.4 | 22.3 | 22.2 |
| 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) | 9.0 | 9.4 | 9.8 | 10.4 | 9.6 | 10.7 | 9.5 | 11.0 | 9.6 | 9.1 | 8.4 | 7.5 |
| Precipitation (mm) | 180 | 158 | 153 | 84 | 107 | 70 | 54 | 44 | 168 | 367 | 484 | 511 |
| Sunny days | 6 | 4 | 5 | 2 | 8 | 2 | 4 | 6 | 0 | 0 | 0 | 0 |
| Rainy days | 25 | 24 | 26 | 28 | 23 | 28 | 27 | 25 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Thottama is at