Average annual temperature is 27.3 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: 19.1 °C
Number of sunny days: 104 days
Number of rainy days: 261 days
Look at detailed online map of Chāttanallūr
* Weather data for Chāttanallūr 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) | 35.6 | 39.8 | 40.1 | 40.3 | 35.0 | 32.9 | 30.9 | 33.5 | 34.8 | 32.5 | 33.1 | 36.8 |
| Average daytime temperature (°C) | 34.1 | 37.1 | 37.5 | 36.9 | 32.7 | 30.4 | 28.7 | 31.4 | 29.4 | 30.8 | 31.3 | 32.9 |
| Average temperature (°C) | 27.0 | 28.5 | 29.8 | 29.6 | 28.0 | 26.6 | 25.4 | 27.1 | 25.6 | 26.3 | 26.6 | 27.5 |
| Average night temperature (°C) | 21.2 | 22.6 | 24.2 | 25.1 | 24.8 | 24.0 | 23.2 | 24.0 | 23.2 | 23.2 | 23.1 | 23.1 |
| Absolute minimum temperature (°C) | 19.1 | 21.0 | 21.4 | 23.5 | 23.2 | 22.7 | 22.3 | 22.7 | 22.7 | 22.2 | 21.7 | 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 | 12.8 | 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) | 10.4 | 10.7 | 11.0 | 11.1 | 8.6 | 8.1 | 6.3 | 11.1 | 7.0 | 9.3 | 9.2 | 9.4 |
| Precipitation (mm) | 7 | 1 | 24 | 140 | 236 | 415 | 522 | 74 | 634 | 308 | 220 | 32 |
| Sunny days | 25 | 26 | 17 | 3 | 1 | 0 | 0 | 4 | 0 | 3 | 7 | 18 |
| Rainy days | 6 | 2 | 14 | 27 | 30 | 30 | 31 | 27 | 30 | 28 | 23 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chāttanallūr is at