Average annual temperature is 20.2 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 254 days
Number of rainy days: 111 days
Look at detailed online map of Unión de San Antonio
* Weather data for Unión de San Antonio Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.6 | 30.2 | 31.3 | 32.8 | 33.1 | 36.7 | 32.6 | 30.5 | 34.1 | 31.2 | 29.7 | 22.5 |
| Average daytime temperature (°C) | 24.0 | 26.3 | 29.0 | 30.1 | 30.8 | 33.7 | 28.4 | 27.5 | 29.6 | 26.8 | 25.4 | 19.5 |
| Average temperature (°C) | 16.0 | 18.2 | 21.2 | 22.6 | 23.5 | 26.0 | 21.4 | 20.8 | 22.1 | 19.8 | 17.7 | 13.3 |
| Average night temperature (°C) | 8.2 | 10.4 | 13.2 | 14.8 | 15.9 | 18.2 | 15.3 | 15.2 | 15.1 | 14.0 | 11.0 | 8.2 |
| Absolute minimum temperature (°C) | 4.5 | 5.0 | 8.5 | 12.6 | 13.4 | 15.5 | 12.8 | 12.3 | 12.2 | 8.7 | 7.6 | 3.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 10.0 | 10.5 | 11.2 | 11.6 | 11.8 | 12.3 | 11.9 | 11.3 | 11.4 | 10.1 | 9.9 | 7.9 |
| Precipitation (mm) | 0 | 0 | 1 | 0 | 11 | 11 | 91 | 78 | 22 | 46 | 55 | 40 |
| Sunny days | 28 | 26 | 27 | 27 | 22 | 26 | 11 | 7 | 25 | 17 | 19 | 19 |
| Rainy days | 3 | 2 | 4 | 3 | 9 | 4 | 20 | 24 | 5 | 14 | 11 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Unión de San Antonio is at