Average annual temperature is 28.1 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 143 days
Number of rainy days: 222 days
Look at detailed online map of Vannanpettai
* Weather data for Vannanpettai India is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.5 | 37.1 | 39.3 | 40.8 | 40.4 | 38.1 | 37.9 | 39.3 | 36.2 | 37.6 | 31.8 | 33.0 |
| Average daytime temperature (°C) | 32.4 | 33.8 | 36.2 | 37.3 | 36.5 | 35.6 | 33.3 | 36.8 | 32.8 | 33.2 | 30.2 | 29.6 |
| Average temperature (°C) | 26.0 | 26.5 | 29.0 | 30.1 | 30.1 | 29.8 | 28.4 | 29.8 | 27.8 | 27.4 | 25.7 | 25.8 |
| Average night temperature (°C) | 21.1 | 20.7 | 23.9 | 25.1 | 26.2 | 26.2 | 25.3 | 25.5 | 24.9 | 23.9 | 22.8 | 22.8 |
| Absolute minimum temperature (°C) | 19.1 | 18.4 | 20.5 | 23.4 | 24.2 | 24.7 | 23.8 | 24.6 | 23.7 | 22.1 | 21.6 | 21.3 |
| 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) | 9.9 | 10.1 | 10.7 | 10.5 | 9.8 | 10.5 | 9.0 | 11.2 | 9.1 | 9.5 | 7.8 | 7.9 |
| Precipitation (mm) | 37 | 53 | 45 | 99 | 57 | 12 | 63 | 57 | 80 | 234 | 403 | 342 |
| Sunny days | 24 | 24 | 9 | 9 | 8 | 14 | 20 | 15 | 5 | 5 | 2 | 8 |
| Rainy days | 7 | 4 | 22 | 21 | 23 | 16 | 11 | 16 | 25 | 26 | 28 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Vannanpettai is at