Average annual temperature is 26.2 °C
Absolute maximum temperature: 41.0 °C
Absolute minimum temperature: 12.6 °C
Number of sunny days: 124 days
Number of rainy days: 241 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) | 32.1 | 35.4 | 38.9 | 41.0 | 38.6 | 40.5 | 34.3 | 35.6 | 33.9 | 34.5 | 31.8 | 31.6 |
| Average daytime temperature (°C) | 28.2 | 29.1 | 33.7 | 34.8 | 34.9 | 36.0 | 32.1 | 32.4 | 32.8 | 30.7 | 27.3 | 25.9 |
| Average temperature (°C) | 23.0 | 23.2 | 26.9 | 28.2 | 28.7 | 30.2 | 26.9 | 27.2 | 27.6 | 26.3 | 23.7 | 22.2 |
| Average night temperature (°C) | 19.1 | 18.9 | 21.8 | 23.3 | 23.9 | 25.6 | 23.4 | 23.4 | 23.3 | 22.9 | 20.9 | 19.2 |
| Absolute minimum temperature (°C) | 12.6 | 14.6 | 17.8 | 19.0 | 19.7 | 22.8 | 22.1 | 21.8 | 22.3 | 19.8 | 17.6 | 12.8 |
| 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) | 8.7 | 7.6 | 9.9 | 10.4 | 11.0 | 11.3 | 9.8 | 10.4 | 10.8 | 9.3 | 6.6 | 6.8 |
| Precipitation (mm) | 35 | 32 | 46 | 81 | 44 | 176 | 391 | 355 | 178 | 260 | 81 | 212 |
| Sunny days | 20 | 16 | 17 | 15 | 16 | 10 | 0 | 2 | 1 | 5 | 11 | 11 |
| Rainy days | 11 | 12 | 14 | 15 | 15 | 20 | 31 | 29 | 29 | 26 | 19 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at