Average annual temperature is 28.0 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of Nannilam
* Weather data for Nannilam 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) | 29.9 | 31.5 | 36.7 | 38.5 | 38.7 | 40.4 | 39.2 | 39.9 | 36.2 | 36.4 | 31.2 | 32.7 |
| Average daytime temperature (°C) | 28.7 | 29.6 | 33.0 | 35.7 | 35.4 | 36.6 | 35.8 | 36.7 | 34.3 | 33.1 | 29.1 | 28.7 |
| Average temperature (°C) | 24.3 | 24.3 | 27.6 | 29.6 | 30.1 | 30.8 | 30.3 | 30.4 | 29.1 | 28.1 | 25.6 | 25.6 |
| Average night temperature (°C) | 20.5 | 20.3 | 23.1 | 24.9 | 26.3 | 27.2 | 26.8 | 26.5 | 25.9 | 24.5 | 23.0 | 23.1 |
| Absolute minimum temperature (°C) | 17.7 | 17.6 | 21.2 | 22.5 | 23.8 | 24.8 | 24.5 | 24.2 | 24.1 | 22.9 | 21.0 | 21.2 |
| 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 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 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) | 9.6 | 10.0 | 11.0 | 11.0 | 9.4 | 9.8 | 8.1 | 10.8 | 10.0 | 10.3 | 6.7 | 7.7 |
| Precipitation (mm) | 17 | 69 | 41 | 40 | 88 | 100 | 68 | 127 | 178 | 249 | 616 | 132 |
| Sunny days | 15 | 20 | 10 | 10 | 12 | 6 | 2 | 3 | 0 | 0 | 0 | 2 |
| Rainy days | 16 | 8 | 21 | 20 | 19 | 24 | 29 | 28 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nannilam is at