Average annual temperature is 16.2 °C
Absolute maximum temperature: 28.0 °C
Absolute minimum temperature: 3.6 °C
Number of sunny days: 88 days
Number of rainy days: 277 days
Look at detailed online map of San Antonio la Unión
* Weather data for San Antonio la Unión 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) | 23.7 | 26.0 | 26.1 | 27.2 | 28.0 | 27.3 | 24.1 | 25.7 | 24.2 | 24.6 | 24.2 | 24.2 |
| Average daytime temperature (°C) | 20.5 | 20.8 | 22.8 | 24.9 | 23.9 | 24.3 | 22.0 | 23.0 | 22.9 | 22.1 | 20.6 | 19.3 |
| Average temperature (°C) | 14.3 | 14.4 | 16.1 | 17.4 | 17.5 | 18.2 | 16.6 | 17.0 | 16.8 | 16.4 | 15.5 | 13.8 |
| Average night temperature (°C) | 9.9 | 10.0 | 11.2 | 11.9 | 12.4 | 13.6 | 13.1 | 12.9 | 12.7 | 12.7 | 12.0 | 10.0 |
| Absolute minimum temperature (°C) | 6.1 | 8.0 | 10.0 | 8.9 | 10.7 | 12.1 | 11.6 | 11.2 | 11.1 | 9.7 | 8.4 | 3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.3 | 10.4 | 10.9 | 11.5 | 11.1 | 11.2 | 10.2 | 10.1 | 10.3 | 9.6 | 9.0 | 9.3 |
| Precipitation (mm) | 8 | 11 | 77 | 45 | 111 | 115 | 137 | 166 | 135 | 99 | 49 | 22 |
| Sunny days | 13 | 16 | 6 | 12 | 6 | 7 | 2 | 3 | 1 | 1 | 8 | 13 |
| Rainy days | 18 | 12 | 25 | 18 | 25 | 23 | 29 | 28 | 29 | 30 | 22 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio la Unión is at