Average annual temperature is 26.7 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: 14.7 °C
Number of sunny days: 194 days
Number of rainy days: 171 days
Look at detailed online map of Nalwelli
* Weather data for Nalwelli 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) | 31.1 | 34.4 | 35.2 | 38.8 | 39.4 | 39.0 | 33.8 | 32.8 | 33.1 | 33.0 | 31.2 | 30.6 |
| Average daytime temperature (°C) | 28.6 | 32.2 | 32.8 | 35.5 | 35.8 | 35.9 | 30.1 | 31.2 | 30.8 | 31.8 | 29.4 | 27.4 |
| Average temperature (°C) | 22.6 | 25.8 | 26.5 | 29.7 | 30.6 | 30.8 | 26.6 | 27.4 | 26.6 | 26.9 | 24.7 | 22.5 |
| Average night temperature (°C) | 17.2 | 19.8 | 20.7 | 24.3 | 25.6 | 26.8 | 24.1 | 24.3 | 23.8 | 22.4 | 20.7 | 18.2 |
| Absolute minimum temperature (°C) | 14.7 | 17.4 | 18.2 | 21.5 | 21.5 | 24.0 | 23.0 | 22.7 | 22.4 | 19.4 | 19.8 | 16.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.0 | 10.6 | 10.6 | 11.0 | 10.4 | 10.1 | 5.4 | 9.7 | 8.0 | 10.7 | 9.7 | 9.3 |
| Precipitation (mm) | 2 | 0 | 87 | 46 | 59 | 73 | 268 | 34 | 223 | 7 | 45 | 11 |
| Sunny days | 28 | 28 | 24 | 19 | 13 | 13 | 1 | 4 | 1 | 23 | 12 | 28 |
| Rainy days | 3 | 0 | 7 | 11 | 18 | 17 | 30 | 27 | 29 | 8 | 18 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nalwelli is at