Average annual temperature is 23.1 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: 13.1 °C
Number of sunny days: 102 days
Number of rainy days: 263 days
Look at detailed online map of Unión del Sur
* Weather data for Unión del Sur 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) | 31.2 | 33.0 | 31.9 | 32.4 | 33.1 | 31.1 | 31.2 | 30.0 | 28.7 | 29.4 | 31.9 | 32.1 |
| Average daytime temperature (°C) | 28.6 | 30.0 | 29.7 | 30.5 | 31.3 | 28.8 | 27.8 | 27.6 | 26.8 | 26.7 | 28.5 | 29.2 |
| Average temperature (°C) | 21.9 | 22.8 | 23.0 | 23.9 | 25.1 | 24.1 | 23.2 | 23.1 | 22.5 | 22.4 | 23.1 | 22.4 |
| Average night temperature (°C) | 16.8 | 17.8 | 17.6 | 18.7 | 20.1 | 20.3 | 19.5 | 19.2 | 18.4 | 18.8 | 19.2 | 17.7 |
| Absolute minimum temperature (°C) | 13.4 | 15.1 | 15.1 | 15.8 | 17.6 | 18.3 | 18.2 | 17.8 | 17.0 | 16.1 | 16.4 | 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.2 | 10.6 | 10.8 | 11.2 | 11.1 | 10.0 | 9.4 | 9.6 | 9.8 | 9.2 | 9.9 | 10.1 |
| Precipitation (mm) | 6 | 8 | 22 | 26 | 24 | 97 | 218 | 193 | 167 | 146 | 45 | 12 |
| Sunny days | 22 | 18 | 10 | 15 | 6 | 1 | 1 | 4 | 1 | 1 | 6 | 17 |
| Rainy days | 9 | 10 | 21 | 15 | 25 | 29 | 30 | 27 | 29 | 30 | 24 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Unión del Sur is at