Average annual temperature is 26.2 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 17.9 °C
Number of sunny days: 75 days
Number of rainy days: 290 days
Look at detailed online map of Vallam
* Weather data for Vallam 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) | 33.6 | 37.2 | 37.6 | 36.0 | 33.7 | 32.9 | 30.8 | 32.2 | 32.4 | 32.4 | 32.6 | 34.9 |
| Average daytime temperature (°C) | 32.3 | 34.2 | 35.4 | 34.2 | 31.8 | 30.1 | 28.7 | 30.7 | 28.5 | 30.6 | 31.0 | 31.9 |
| Average temperature (°C) | 25.1 | 26.3 | 27.9 | 27.9 | 27.0 | 25.9 | 25.2 | 26.3 | 24.8 | 25.7 | 25.9 | 26.4 |
| Average night temperature (°C) | 19.6 | 20.3 | 22.5 | 23.8 | 24.1 | 23.3 | 22.9 | 23.2 | 22.8 | 22.8 | 22.6 | 22.0 |
| Absolute minimum temperature (°C) | 17.9 | 18.6 | 18.7 | 22.6 | 22.9 | 22.6 | 22.1 | 21.8 | 22.1 | 21.7 | 20.8 | 18.6 |
| 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 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 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 | 11.0 | 10.7 | 8.1 | 7.2 | 6.1 | 10.7 | 5.2 | 8.4 | 8.6 | 9.2 |
| Precipitation (mm) | 34 | 9 | 78 | 271 | 321 | 495 | 670 | 169 | 808 | 627 | 346 | 125 |
| Sunny days | 26 | 24 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 13 |
| Rainy days | 5 | 4 | 23 | 30 | 31 | 30 | 31 | 31 | 30 | 30 | 27 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Vallam is at