Average annual temperature is 25.4 °C
Absolute maximum temperature: 41.3 °C
Absolute minimum temperature: 9.6 °C
Number of sunny days: 113 days
Number of rainy days: 252 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) | 30.8 | 33.8 | 35.7 | 36.7 | 36.1 | 41.3 | 39.0 | 39.2 | 37.5 | 37.0 | 30.3 | 30.2 |
| Average daytime temperature (°C) | 26.6 | 26.5 | 30.2 | 30.2 | 33.0 | 36.2 | 34.8 | 34.4 | 36.2 | 30.3 | 25.7 | 24.3 |
| Average temperature (°C) | 21.3 | 20.8 | 24.1 | 25.2 | 27.4 | 30.2 | 29.0 | 28.6 | 29.9 | 25.8 | 21.5 | 20.4 |
| Average night temperature (°C) | 17.8 | 17.0 | 20.2 | 21.7 | 23.2 | 25.4 | 24.8 | 24.5 | 25.2 | 22.5 | 18.4 | 17.4 |
| Absolute minimum temperature (°C) | 9.6 | 10.1 | 12.2 | 16.8 | 17.7 | 23.0 | 22.7 | 22.6 | 23.5 | 14.2 | 13.4 | 13.1 |
| 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 | 11.2 | 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 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.3 | 7.2 | 9.1 | 8.9 | 11.1 | 12.1 | 11.4 | 11.1 | 11.2 | 8.4 | 6.2 | 5.2 |
| Precipitation (mm) | 32 | 38 | 57 | 166 | 42 | 42 | 96 | 137 | 48 | 279 | 84 | 85 |
| Sunny days | 17 | 13 | 12 | 8 | 13 | 11 | 3 | 3 | 4 | 5 | 16 | 8 |
| Rainy days | 14 | 15 | 19 | 22 | 18 | 19 | 28 | 28 | 26 | 26 | 14 | 23 |
| 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