Average annual temperature is 26.5 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: 15.4 °C
Number of sunny days: 111 days
Number of rainy days: 254 days
Look at detailed online map of Perumālnattam
* Weather data for Perumālnattam 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) | 27.7 | 31.9 | 34.3 | 36.6 | 36.8 | 37.4 | 36.0 | 37.3 | 34.2 | 35.6 | 30.2 | 31.3 |
| Average daytime temperature (°C) | 26.5 | 29.2 | 31.8 | 34.2 | 34.4 | 34.4 | 33.5 | 35.6 | 32.7 | 31.9 | 28.1 | 27.4 |
| Average temperature (°C) | 22.0 | 23.4 | 26.0 | 28.2 | 28.9 | 29.3 | 28.7 | 29.5 | 27.6 | 26.7 | 24.3 | 23.6 |
| Average night temperature (°C) | 18.1 | 17.8 | 21.2 | 22.4 | 24.4 | 25.7 | 25.1 | 24.9 | 24.1 | 22.6 | 21.8 | 20.7 |
| Absolute minimum temperature (°C) | 15.4 | 15.7 | 18.1 | 20.4 | 22.2 | 24.3 | 23.6 | 23.7 | 23.1 | 20.5 | 19.7 | 17.8 |
| 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) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.4 |
| 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 | 10.2 | 10.9 | 11.3 | 10.0 | 9.3 | 8.0 | 10.5 | 9.3 | 10.3 | 7.5 | 7.7 |
| Precipitation (mm) | 29 | 12 | 34 | 30 | 96 | 90 | 59 | 80 | 190 | 105 | 274 | 102 |
| Sunny days | 14 | 25 | 14 | 17 | 12 | 3 | 7 | 8 | 2 | 6 | 0 | 3 |
| Rainy days | 17 | 3 | 17 | 13 | 19 | 27 | 24 | 23 | 28 | 25 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Perumālnattam is at