Average annual temperature is 27.6 °C
Absolute maximum temperature: 42.2 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 156 days
Number of rainy days: 209 days
Look at detailed online map of Rajam
* Weather data for Rajam 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) | 33.8 | 37.4 | 37.6 | 42.1 | 41.3 | 42.2 | 37.9 | 36.6 | 35.3 | 36.8 | 33.3 | 31.9 |
| Average daytime temperature (°C) | 31.0 | 35.1 | 34.5 | 37.5 | 37.2 | 37.4 | 33.5 | 34.0 | 32.5 | 34.4 | 31.6 | 28.7 |
| Average temperature (°C) | 23.5 | 26.0 | 27.1 | 30.3 | 30.3 | 31.6 | 28.6 | 29.2 | 28.0 | 28.4 | 25.8 | 22.9 |
| Average night temperature (°C) | 18.0 | 19.7 | 21.6 | 24.9 | 26.1 | 27.9 | 25.7 | 26.0 | 25.2 | 23.8 | 21.8 | 18.7 |
| Absolute minimum temperature (°C) | 13.9 | 16.8 | 18.6 | 22.6 | 22.0 | 25.4 | 24.2 | 24.8 | 24.2 | 21.5 | 19.9 | 15.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.1 | 10.5 | 10.0 | 10.5 | 10.2 | 9.0 | 8.2 | 8.6 | 8.0 | 10.4 | 9.7 | 8.8 |
| Precipitation (mm) | 5 | 1 | 55 | 50 | 160 | 93 | 487 | 152 | 317 | 28 | 81 | 100 |
| Sunny days | 27 | 25 | 13 | 13 | 6 | 9 | 0 | 1 | 0 | 19 | 18 | 25 |
| Rainy days | 4 | 3 | 18 | 17 | 25 | 21 | 31 | 30 | 30 | 12 | 12 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rajam is at