Average annual temperature is 27.7 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 21.9 °C
Number of sunny days: 81 days
Number of rainy days: 284 days
Look at detailed online map of Chemmalai
* Weather data for Chemmalai 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) | 28.2 | 29.3 | 32.2 | 35.2 | 36.0 | 36.8 | 37.6 | 38.0 | 35.9 | 34.2 | 30.2 | 32.3 |
| Average daytime temperature (°C) | 26.9 | 27.7 | 29.4 | 31.1 | 33.1 | 34.8 | 35.4 | 36.0 | 34.2 | 31.3 | 28.7 | 28.3 |
| Average temperature (°C) | 25.5 | 25.9 | 27.2 | 28.2 | 28.7 | 30.1 | 29.9 | 29.5 | 28.7 | 26.9 | 26.0 | 26.2 |
| Average night temperature (°C) | 24.1 | 24.2 | 25.1 | 25.8 | 26.0 | 27.0 | 26.7 | 25.9 | 25.7 | 24.3 | 23.9 | 24.2 |
| Absolute minimum temperature (°C) | 21.9 | 22.7 | 23.5 | 24.2 | 23.9 | 25.3 | 25.8 | 24.8 | 24.4 | 23.1 | 22.8 | 23.0 |
| 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) | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 9.2 | 10.1 | 10.8 | 10.5 | 9.2 | 10.3 | 9.4 | 11.0 | 9.9 | 9.8 | 7.8 | 7.8 |
| Precipitation (mm) | 135 | 113 | 42 | 77 | 95 | 22 | 32 | 79 | 121 | 292 | 506 | 407 |
| Sunny days | 8 | 13 | 7 | 13 | 8 | 9 | 11 | 7 | 3 | 2 | 0 | 0 |
| Rainy days | 23 | 15 | 24 | 17 | 23 | 21 | 20 | 24 | 27 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chemmalai is at