Average annual temperature is 27.6 °C
Absolute maximum temperature: 41.8 °C
Absolute minimum temperature: 19.9 °C
Number of sunny days: 114 days
Number of rainy days: 251 days
Look at detailed online map of Vannāmadai
* Weather data for Vannāmadai 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) | 35.1 | 37.5 | 38.9 | 41.8 | 38.3 | 34.8 | 31.3 | 34.6 | 35.5 | 34.5 | 35.2 | 34.9 |
| Average daytime temperature (°C) | 33.1 | 36.1 | 37.0 | 38.1 | 34.1 | 31.5 | 28.5 | 32.3 | 29.1 | 31.9 | 31.9 | 32.7 |
| Average temperature (°C) | 26.8 | 28.6 | 29.9 | 30.4 | 28.7 | 27.1 | 25.2 | 27.5 | 25.3 | 26.7 | 26.9 | 27.6 |
| Average night temperature (°C) | 21.7 | 22.5 | 24.3 | 25.2 | 25.1 | 24.2 | 23.1 | 24.2 | 23.0 | 23.3 | 23.3 | 23.5 |
| Absolute minimum temperature (°C) | 19.9 | 20.0 | 22.5 | 22.6 | 23.0 | 22.4 | 22.0 | 23.2 | 22.1 | 22.4 | 21.9 | 20.9 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.7 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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) | 10.3 | 10.7 | 11.1 | 10.8 | 9.5 | 9.6 | 7.0 | 11.1 | 9.0 | 9.8 | 9.5 | 9.2 |
| Precipitation (mm) | 13 | 8 | 9 | 122 | 108 | 86 | 372 | 77 | 224 | 194 | 167 | 37 |
| Sunny days | 27 | 24 | 18 | 10 | 1 | 2 | 1 | 2 | 0 | 5 | 7 | 17 |
| Rainy days | 4 | 4 | 13 | 20 | 30 | 28 | 30 | 29 | 30 | 26 | 23 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Vannāmadai is at