Average annual temperature is 16.1 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: 1.6 °C
Number of sunny days: 157 days
Number of rainy days: 208 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) | 24.9 | 28.0 | 29.1 | 29.9 | 29.8 | 32.3 | 26.8 | 27.1 | 27.9 | 26.4 | 27.9 | 21.8 |
| Average daytime temperature (°C) | 21.1 | 23.1 | 25.5 | 26.5 | 25.7 | 29.0 | 24.2 | 23.6 | 25.9 | 22.5 | 21.3 | 17.5 |
| Average temperature (°C) | 12.9 | 13.8 | 17.0 | 18.1 | 18.2 | 20.7 | 17.2 | 16.8 | 17.7 | 15.7 | 13.7 | 11.1 |
| Average night temperature (°C) | 6.6 | 7.5 | 10.4 | 12.0 | 12.2 | 14.5 | 12.1 | 12.3 | 12.1 | 11.5 | 8.7 | 7.1 |
| Absolute minimum temperature (°C) | 3.3 | 1.6 | 3.9 | 9.6 | 10.1 | 11.3 | 9.1 | 9.7 | 10.5 | 6.4 | 5.1 | 2.0 |
| 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) | 11.1 | 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) | 10.0 | 10.1 | 10.7 | 11.1 | 11.4 | 12.2 | 11.5 | 10.5 | 11.1 | 8.9 | 8.7 | 7.1 |
| Precipitation (mm) | 2 | 3 | 40 | 35 | 92 | 28 | 90 | 86 | 35 | 66 | 24 | 35 |
| Sunny days | 25 | 19 | 18 | 10 | 7 | 19 | 2 | 2 | 16 | 10 | 17 | 12 |
| Rainy days | 6 | 9 | 13 | 20 | 24 | 11 | 29 | 29 | 14 | 21 | 13 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at