Average annual temperature is 28.2 °C
Absolute maximum temperature: 41.0 °C
Absolute minimum temperature: 19.7 °C
Number of sunny days: 96 days
Number of rainy days: 269 days
Look at detailed online map of Usilankulam
* Weather data for Usilankulam 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) | 35.3 | 36.2 | 38.5 | 39.7 | 41.0 | 39.3 | 38.0 | 40.3 | 36.0 | 35.9 | 31.8 | 32.6 |
| Average daytime temperature (°C) | 32.0 | 32.6 | 35.2 | 36.4 | 36.4 | 37.1 | 35.0 | 38.2 | 33.6 | 32.1 | 29.6 | 29.0 |
| Average temperature (°C) | 25.7 | 26.1 | 28.6 | 29.6 | 30.3 | 31.0 | 29.7 | 30.9 | 28.3 | 27.0 | 25.7 | 25.7 |
| Average night temperature (°C) | 21.9 | 21.7 | 23.9 | 24.5 | 25.7 | 26.1 | 25.2 | 25.0 | 24.7 | 23.5 | 23.2 | 23.3 |
| Absolute minimum temperature (°C) | 20.7 | 19.7 | 22.3 | 22.7 | 24.0 | 24.5 | 23.1 | 22.5 | 23.5 | 22.5 | 21.9 | 22.5 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 10.2 | 10.3 | 11.0 | 10.6 | 9.7 | 10.8 | 9.2 | 11.3 | 9.1 | 9.2 | 7.5 | 7.8 |
| Precipitation (mm) | 37 | 51 | 44 | 70 | 71 | 21 | 51 | 45 | 147 | 186 | 326 | 508 |
| Sunny days | 21 | 21 | 7 | 2 | 4 | 8 | 15 | 8 | 3 | 2 | 1 | 4 |
| Rainy days | 10 | 7 | 24 | 28 | 27 | 22 | 16 | 23 | 27 | 29 | 29 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Usilankulam is at