Average annual temperature is 28.1 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 132 days
Number of rainy days: 233 days
Look at detailed online map of Rettanai
* Weather data for Rettanai 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) | 30.5 | 34.0 | 36.6 | 39.4 | 40.0 | 40.3 | 37.6 | 38.6 | 35.3 | 35.3 | 31.8 | 31.8 |
| Average daytime temperature (°C) | 29.2 | 32.0 | 34.0 | 36.8 | 36.7 | 36.1 | 34.6 | 36.1 | 33.6 | 33.2 | 29.5 | 29.1 |
| Average temperature (°C) | 23.9 | 25.0 | 27.5 | 29.7 | 30.9 | 31.0 | 30.0 | 30.6 | 29.0 | 28.3 | 25.6 | 25.3 |
| Average night temperature (°C) | 19.7 | 19.7 | 22.7 | 24.5 | 26.5 | 27.4 | 26.7 | 26.3 | 25.6 | 24.2 | 23.1 | 22.1 |
| Absolute minimum temperature (°C) | 17.3 | 16.7 | 19.7 | 21.4 | 23.7 | 24.4 | 24.5 | 23.8 | 24.7 | 23.1 | 21.3 | 19.4 |
| 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) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.8 | 12.8 | 12.5 | 12.2 | 11.9 | 11.6 | 11.4 |
| 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) | 10.0 | 10.0 | 10.8 | 11.1 | 10.1 | 9.2 | 7.4 | 10.4 | 9.8 | 10.1 | 7.0 | 8.2 |
| Precipitation (mm) | 9 | 5 | 46 | 20 | 106 | 157 | 71 | 109 | 136 | 158 | 365 | 111 |
| Sunny days | 17 | 24 | 16 | 18 | 16 | 6 | 9 | 7 | 5 | 6 | 2 | 6 |
| Rainy days | 14 | 4 | 15 | 12 | 15 | 24 | 22 | 24 | 25 | 25 | 28 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rettanai is at