Average annual temperature is 27.5 °C
Absolute maximum temperature: 41.5 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 99 days
Number of rainy days: 266 days
Look at detailed online map of Chettallūr
* Weather data for Chettallūr 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) | 36.0 | 39.7 | 40.3 | 41.5 | 35.6 | 33.2 | 31.4 | 34.0 | 34.9 | 32.9 | 33.8 | 36.5 |
| Average daytime temperature (°C) | 34.2 | 37.7 | 38.2 | 38.2 | 33.3 | 30.8 | 29.0 | 31.9 | 29.8 | 31.3 | 31.8 | 33.5 |
| Average temperature (°C) | 27.0 | 28.7 | 30.1 | 29.9 | 28.1 | 26.6 | 25.5 | 27.3 | 25.6 | 26.3 | 26.7 | 27.9 |
| Average night temperature (°C) | 20.7 | 21.7 | 23.8 | 24.8 | 24.6 | 23.8 | 23.1 | 23.9 | 23.2 | 23.0 | 22.8 | 23.2 |
| Absolute minimum temperature (°C) | 18.0 | 20.0 | 20.2 | 23.4 | 22.8 | 22.6 | 22.4 | 22.7 | 22.6 | 21.9 | 20.4 | 20.0 |
| 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) | 10.3 | 10.7 | 11.0 | 11.1 | 8.4 | 7.8 | 6.4 | 11.1 | 6.6 | 9.2 | 9.3 | 9.4 |
| Precipitation (mm) | 10 | 1 | 31 | 120 | 269 | 396 | 473 | 98 | 639 | 285 | 126 | 27 |
| Sunny days | 26 | 26 | 16 | 4 | 1 | 0 | 0 | 2 | 0 | 3 | 7 | 14 |
| Rainy days | 5 | 2 | 15 | 26 | 30 | 30 | 31 | 29 | 30 | 28 | 23 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chettallūr is at