Average annual temperature is 28.4 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: 18.2 °C
Number of sunny days: 81 days
Number of rainy days: 284 days
Look at detailed online map of Nanniyāvūr
* Weather data for Nanniyāvūr 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) | 32.0 | 32.7 | 35.9 | 39.5 | 39.7 | 41.1 | 40.1 | 40.4 | 37.3 | 35.7 | 32.0 | 32.2 |
| Average daytime temperature (°C) | 29.7 | 30.5 | 33.3 | 35.8 | 35.6 | 38.4 | 37.2 | 37.1 | 35.5 | 32.9 | 30.2 | 29.5 |
| Average temperature (°C) | 24.9 | 25.2 | 28.1 | 30.0 | 29.9 | 31.4 | 30.9 | 30.5 | 29.7 | 28.1 | 26.1 | 26.1 |
| Average night temperature (°C) | 20.7 | 20.7 | 23.7 | 25.4 | 26.1 | 27.2 | 26.7 | 26.3 | 25.9 | 24.4 | 23.2 | 23.3 |
| Absolute minimum temperature (°C) | 18.5 | 18.2 | 20.8 | 24.1 | 23.7 | 25.2 | 24.6 | 24.1 | 24.2 | 22.6 | 22.1 | 21.7 |
| 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 | 12.3 | 12.6 | 12.7 | 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) | 10.1 | 10.1 | 11.2 | 11.2 | 9.4 | 10.0 | 9.1 | 11.2 | 10.5 | 10.0 | 7.9 | 7.9 |
| Precipitation (mm) | 12 | 46 | 24 | 56 | 105 | 59 | 67 | 105 | 121 | 263 | 456 | 180 |
| Sunny days | 19 | 22 | 11 | 10 | 7 | 3 | 5 | 2 | 0 | 0 | 0 | 2 |
| Rainy days | 12 | 6 | 20 | 20 | 24 | 27 | 26 | 29 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nanniyāvūr is at