Average annual temperature is 23.8 °C
Absolute maximum temperature: 43.8 °C
Absolute minimum temperature: 3.4 °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) | 30.5 | 36.2 | 39.9 | 34.4 | 36.4 | 43.8 | 41.9 | 43.4 | 41.9 | 37.8 | 31.8 | 29.1 |
| Average daytime temperature (°C) | 25.0 | 27.0 | 31.4 | 28.2 | 30.8 | 38.0 | 39.7 | 39.7 | 37.5 | 29.2 | 22.8 | 21.7 |
| Average temperature (°C) | 17.4 | 18.2 | 22.4 | 22.0 | 24.5 | 30.3 | 31.9 | 31.8 | 30.3 | 23.4 | 17.5 | 16.0 |
| Average night temperature (°C) | 11.3 | 11.7 | 16.4 | 17.3 | 19.7 | 23.2 | 25.1 | 25.0 | 23.8 | 19.0 | 13.5 | 11.4 |
| Absolute minimum temperature (°C) | 6.3 | 3.4 | 5.9 | 10.4 | 14.2 | 19.2 | 23.6 | 22.3 | 20.7 | 8.9 | 6.5 | 3.4 |
| 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) | 10.8 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.5 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.0 | 9.6 | 8.2 | 8.1 | 9.6 | 12.0 | 12.2 | 11.7 | 11.0 | 7.5 | 5.9 | 6.9 |
| Precipitation (mm) | 4 | 2 | 88 | 93 | 125 | 45 | 33 | 27 | 49 | 110 | 102 | 17 |
| Sunny days | 27 | 25 | 23 | 8 | 6 | 20 | 22 | 20 | 25 | 15 | 17 | 24 |
| Rainy days | 4 | 3 | 8 | 22 | 25 | 10 | 9 | 11 | 5 | 16 | 13 | 7 |
| 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