Average annual temperature is 28.4 °C
Absolute maximum temperature: 41.5 °C
Absolute minimum temperature: 17.1 °C
Number of sunny days: 121 days
Number of rainy days: 244 days
Look at detailed online map of Vannam
* Weather data for Vannam 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) | 31.2 | 34.8 | 36.6 | 40.1 | 40.3 | 41.5 | 39.6 | 40.3 | 36.4 | 36.0 | 31.9 | 33.1 |
| Average daytime temperature (°C) | 29.7 | 31.7 | 34.5 | 37.3 | 36.8 | 37.8 | 36.5 | 37.2 | 34.6 | 33.6 | 29.7 | 29.1 |
| Average temperature (°C) | 24.3 | 25.1 | 28.1 | 30.3 | 30.6 | 31.5 | 30.7 | 30.9 | 29.0 | 28.2 | 25.7 | 25.6 |
| Average night temperature (°C) | 20.0 | 19.8 | 23.1 | 24.8 | 26.0 | 27.3 | 26.4 | 26.1 | 25.7 | 24.1 | 22.9 | 22.7 |
| Absolute minimum temperature (°C) | 17.5 | 17.1 | 20.8 | 22.5 | 23.8 | 25.2 | 24.3 | 24.6 | 24.0 | 22.8 | 21.0 | 20.3 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.8 | 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) | 9.9 | 9.8 | 10.9 | 11.0 | 9.7 | 9.7 | 7.7 | 10.8 | 9.6 | 10.3 | 7.3 | 7.5 |
| Precipitation (mm) | 6 | 65 | 55 | 56 | 117 | 74 | 44 | 123 | 151 | 194 | 465 | 76 |
| Sunny days | 18 | 20 | 16 | 14 | 11 | 10 | 8 | 13 | 2 | 5 | 0 | 4 |
| Rainy days | 13 | 8 | 15 | 16 | 20 | 20 | 23 | 18 | 28 | 26 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Vannam is at