Average annual temperature is 28.0 °C
Absolute maximum temperature: 40.5 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 97 days
Number of rainy days: 268 days
Look at detailed online map of Usilangudi
* Weather data for Usilangudi 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) | 31.5 | 33.0 | 36.7 | 38.5 | 38.6 | 40.5 | 39.3 | 40.0 | 36.1 | 35.4 | 31.3 | 32.6 |
| Average daytime temperature (°C) | 29.7 | 30.5 | 33.4 | 35.5 | 35.4 | 36.5 | 35.2 | 36.4 | 34.1 | 32.5 | 29.5 | 29.1 |
| Average temperature (°C) | 24.6 | 24.9 | 28.0 | 29.9 | 29.8 | 30.4 | 29.7 | 29.9 | 28.8 | 27.7 | 25.8 | 25.8 |
| Average night temperature (°C) | 20.5 | 20.5 | 23.8 | 25.7 | 26.2 | 26.8 | 26.2 | 26.0 | 25.5 | 24.5 | 23.3 | 23.2 |
| Absolute minimum temperature (°C) | 18.5 | 18.4 | 20.8 | 24.2 | 24.2 | 25.5 | 24.6 | 24.7 | 24.4 | 23.1 | 21.7 | 21.6 |
| 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) | 10.1 | 10.1 | 11.1 | 11.2 | 9.7 | 9.9 | 8.6 | 11.3 | 9.9 | 10.1 | 7.7 | 7.8 |
| Precipitation (mm) | 12 | 49 | 33 | 45 | 131 | 118 | 73 | 166 | 155 | 242 | 426 | 121 |
| Sunny days | 21 | 22 | 11 | 10 | 9 | 8 | 5 | 3 | 1 | 1 | 1 | 5 |
| Rainy days | 10 | 6 | 20 | 20 | 22 | 22 | 26 | 28 | 29 | 30 | 29 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Usilangudi is at