Average annual temperature is 27.9 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 139 days
Number of rainy days: 226 days
Look at detailed online map of Kīlmattai
* Weather data for Kīlmattai 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 | 34.9 | 36.7 | 39.9 | 40.4 | 40.6 | 36.7 | 37.5 | 35.2 | 34.7 | 31.5 | 31.7 |
| Average daytime temperature (°C) | 29.2 | 32.8 | 34.6 | 37.3 | 37.0 | 36.1 | 33.8 | 35.8 | 33.3 | 32.7 | 29.5 | 28.8 |
| Average temperature (°C) | 23.7 | 25.5 | 27.6 | 30.2 | 30.9 | 30.6 | 29.2 | 30.2 | 28.6 | 27.8 | 25.4 | 24.8 |
| Average night temperature (°C) | 19.0 | 19.3 | 22.4 | 24.6 | 26.2 | 26.8 | 25.8 | 26.0 | 25.1 | 23.7 | 22.9 | 21.4 |
| Absolute minimum temperature (°C) | 16.7 | 17.0 | 18.1 | 21.4 | 23.8 | 24.6 | 24.2 | 24.4 | 24.1 | 22.1 | 21.5 | 18.6 |
| 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 | 12.9 | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 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) | 9.9 | 10.5 | 10.8 | 11.2 | 10.2 | 9.4 | 7.2 | 10.4 | 9.5 | 10.1 | 7.1 | 8.3 |
| Precipitation (mm) | 8 | 1 | 56 | 13 | 118 | 120 | 97 | 93 | 162 | 90 | 307 | 106 |
| Sunny days | 18 | 25 | 17 | 19 | 14 | 9 | 8 | 10 | 3 | 7 | 1 | 8 |
| Rainy days | 13 | 3 | 14 | 11 | 17 | 21 | 23 | 21 | 27 | 24 | 29 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kīlmattai is at