Average annual temperature is 28.1 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 110 days
Number of rainy days: 255 days
Look at detailed online map of Rāyampettai
* Weather data for Rāyampettai 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) | 30.9 | 33.1 | 36.2 | 39.4 | 39.0 | 39.6 | 38.8 | 39.7 | 36.7 | 36.2 | 32.4 | 33.1 |
| Average daytime temperature (°C) | 29.2 | 30.8 | 33.8 | 36.3 | 36.1 | 37.0 | 35.8 | 36.9 | 34.7 | 33.5 | 29.8 | 29.3 |
| Average temperature (°C) | 24.0 | 24.5 | 27.7 | 29.7 | 30.3 | 31.1 | 30.4 | 30.7 | 29.1 | 28.1 | 25.7 | 25.7 |
| Average night temperature (°C) | 19.7 | 19.4 | 22.8 | 24.3 | 26.0 | 27.2 | 26.5 | 26.2 | 25.7 | 24.3 | 23.1 | 22.8 |
| Absolute minimum temperature (°C) | 17.0 | 16.7 | 20.2 | 21.1 | 23.8 | 25.4 | 24.5 | 24.7 | 24.0 | 22.8 | 20.9 | 20.4 |
| 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) | 11.6 | 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) | 9.9 | 9.7 | 10.9 | 10.9 | 9.6 | 9.8 | 7.8 | 10.8 | 9.2 | 10.4 | 7.4 | 7.5 |
| Precipitation (mm) | 7 | 55 | 63 | 55 | 105 | 61 | 45 | 147 | 171 | 140 | 362 | 113 |
| Sunny days | 20 | 21 | 12 | 10 | 12 | 10 | 7 | 9 | 1 | 3 | 1 | 4 |
| Rainy days | 11 | 7 | 19 | 20 | 19 | 20 | 24 | 22 | 29 | 28 | 29 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rāyampettai is at