Average annual temperature is 25.7 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 12.8 °C
Number of sunny days: 87 days
Number of rainy days: 278 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) | 34.0 | 31.2 | 36.1 | 39.3 | 38.2 | 37.9 | 34.9 | 35.4 | 34.1 | 35.6 | 30.4 | 31.0 |
| Average daytime temperature (°C) | 28.6 | 28.9 | 32.3 | 34.2 | 34.6 | 34.9 | 32.6 | 33.2 | 32.1 | 31.6 | 28.4 | 27.1 |
| Average temperature (°C) | 23.1 | 23.4 | 25.5 | 27.0 | 27.6 | 28.5 | 26.9 | 27.3 | 26.2 | 25.8 | 24.0 | 22.5 |
| Average night temperature (°C) | 19.3 | 19.5 | 20.8 | 21.8 | 22.5 | 23.7 | 23.2 | 23.3 | 22.5 | 21.8 | 21.0 | 19.4 |
| Absolute minimum temperature (°C) | 12.8 | 14.0 | 18.3 | 19.5 | 18.8 | 21.3 | 21.5 | 21.6 | 20.7 | 17.9 | 18.4 | 13.6 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 9.8 | 10.6 | 11.1 | 11.2 | 11.0 | 10.4 | 10.4 | 10.3 | 9.9 | 8.5 | 8.1 |
| Precipitation (mm) | 35 | 23 | 24 | 33 | 72 | 76 | 87 | 98 | 174 | 103 | 142 | 70 |
| Sunny days | 9 | 7 | 15 | 17 | 8 | 6 | 2 | 4 | 0 | 7 | 4 | 8 |
| Rainy days | 22 | 21 | 16 | 13 | 23 | 24 | 29 | 27 | 30 | 24 | 26 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at