Average annual temperature is 27.8 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Illupaikadavai
* Weather data for Illupaikadavai 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 | 31.4 | 33.4 | 36.5 | 34.3 | 34.7 | 34.6 | 34.8 | 33.3 | 32.9 | 31.5 | 30.1 |
| Average daytime temperature (°C) | 28.1 | 29.4 | 31.8 | 33.4 | 31.7 | 32.4 | 32.7 | 33.4 | 31.8 | 30.9 | 29.1 | 28.7 |
| Average temperature (°C) | 24.9 | 25.5 | 27.6 | 28.8 | 29.1 | 29.6 | 29.3 | 29.5 | 28.8 | 27.5 | 26.1 | 26.3 |
| Average night temperature (°C) | 22.3 | 22.4 | 24.5 | 25.2 | 26.8 | 27.7 | 27.1 | 26.8 | 26.5 | 24.8 | 23.9 | 24.3 |
| Absolute minimum temperature (°C) | 19.4 | 20.0 | 23.5 | 23.8 | 24.2 | 26.3 | 26.5 | 25.9 | 24.9 | 23.5 | 23.3 | 23.7 |
| 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 | 10.3 | 11.0 | 10.7 | 9.2 | 10.5 | 9.6 | 11.1 | 10.4 | 9.5 | 7.0 | 7.9 |
| Precipitation (mm) | 53 | 103 | 44 | 94 | 77 | 33 | 10 | 8 | 19 | 128 | 376 | 216 |
| Sunny days | 16 | 17 | 7 | 5 | 16 | 18 | 19 | 25 | 4 | 1 | 0 | 1 |
| Rainy days | 15 | 11 | 24 | 25 | 15 | 12 | 12 | 6 | 26 | 30 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illupaikadavai is at