Average annual temperature is 24.8 °C
Absolute maximum temperature: 45.3 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 232 days
Number of rainy days: 133 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) | 32.3 | 36.3 | 39.2 | 36.8 | 38.0 | 45.3 | 41.9 | 42.4 | 41.1 | 38.2 | 32.4 | 28.2 |
| Average daytime temperature (°C) | 26.1 | 26.9 | 31.3 | 29.1 | 31.7 | 38.1 | 38.6 | 38.8 | 37.9 | 31.0 | 23.3 | 22.8 |
| Average temperature (°C) | 19.6 | 19.1 | 23.1 | 23.2 | 26.1 | 30.5 | 31.2 | 31.6 | 30.9 | 25.1 | 18.7 | 17.7 |
| Average night temperature (°C) | 15.0 | 14.2 | 18.3 | 19.2 | 22.0 | 25.2 | 26.0 | 26.4 | 25.8 | 21.1 | 15.5 | 14.0 |
| Absolute minimum temperature (°C) | 6.6 | 3.5 | 7.3 | 13.8 | 19.6 | 21.2 | 24.1 | 24.1 | 23.3 | 9.1 | 9.0 | 7.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.8 | 9.4 | 8.5 | 8.8 | 10.5 | 12.4 | 12.5 | 11.8 | 11.0 | 7.9 | 5.7 | 6.7 |
| Precipitation (mm) | 8 | 5 | 34 | 76 | 124 | 28 | 11 | 21 | 14 | 33 | 97 | 24 |
| Sunny days | 26 | 23 | 23 | 11 | 9 | 24 | 20 | 20 | 22 | 14 | 17 | 23 |
| Rainy days | 5 | 5 | 8 | 19 | 22 | 6 | 11 | 11 | 8 | 17 | 13 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit La Unión during the most sunny months:
The largest precipitation sum in La Unión is at