Average annual temperature is 13.5 °C
Absolute maximum temperature: 28.2 °C
Absolute minimum temperature: -0.4 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of La Unión
* Weather data for 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) | 22.9 | 26.1 | 26.7 | 27.6 | 25.6 | 28.2 | 23.0 | 23.2 | 23.4 | 23.5 | 24.7 | 20.1 |
| Average daytime temperature (°C) | 19.1 | 21.3 | 22.5 | 22.8 | 22.3 | 24.6 | 20.5 | 20.1 | 21.4 | 20.0 | 19.5 | 15.9 |
| Average temperature (°C) | 11.3 | 12.4 | 14.2 | 14.8 | 15.0 | 17.2 | 14.1 | 13.9 | 14.2 | 13.2 | 12.1 | 9.4 |
| Average night temperature (°C) | 5.6 | 6.0 | 8.1 | 8.8 | 9.4 | 11.1 | 9.0 | 9.6 | 8.8 | 8.8 | 7.4 | 5.0 |
| Absolute minimum temperature (°C) | 2.5 | 1.2 | 2.5 | 6.9 | 7.2 | 8.4 | 6.5 | 7.0 | 7.2 | 5.2 | 3.1 | -0.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 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 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 10.2 | 10.4 | 10.8 | 11.1 | 11.5 | 12.1 | 11.5 | 10.5 | 11.3 | 9.0 | 9.5 | 7.9 |
| Precipitation (mm) | 4 | 5 | 56 | 50 | 95 | 25 | 104 | 90 | 36 | 58 | 20 | 28 |
| Sunny days | 21 | 22 | 9 | 3 | 1 | 14 | 1 | 2 | 13 | 9 | 15 | 13 |
| Rainy days | 10 | 6 | 22 | 27 | 30 | 16 | 30 | 29 | 17 | 22 | 15 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at