Average annual temperature is 17.6 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: -1.2 °C
Number of sunny days: 262 days
Number of rainy days: 103 days
Look at detailed online map of Unión
* Weather data for Unión Argentina is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.3 | 38.6 | 38.1 | 31.1 | 28.6 | 24.6 | 25.9 | 28.5 | 31.4 | 32.5 | 38.3 | 35.9 |
| Average daytime temperature (°C) | 32.7 | 31.9 | 28.4 | 24.1 | 20.0 | 16.2 | 15.2 | 18.1 | 20.2 | 24.3 | 28.2 | 29.0 |
| Average temperature (°C) | 26.2 | 24.6 | 22.7 | 17.9 | 13.9 | 10.2 | 9.3 | 11.6 | 13.7 | 17.4 | 21.2 | 22.8 |
| Average night temperature (°C) | 19.9 | 17.8 | 18.0 | 12.6 | 9.0 | 5.7 | 4.9 | 6.6 | 8.2 | 10.9 | 14.3 | 17.2 |
| Absolute minimum temperature (°C) | 16.3 | 7.6 | 10.1 | 6.2 | 3.2 | -1.2 | -0.1 | -0.3 | 2.7 | 5.4 | 5.1 | 10.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.2 | 13.4 | 12.3 | 11.2 | 10.3 | 9.8 | 10.0 | 10.8 | 11.9 | 13.0 | 14.0 | 14.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.3 | 12.1 | 8.8 | 8.4 | 8.0 | 7.5 | 7.4 | 7.7 | 8.4 | 10.3 | 11.6 | 11.3 |
| Precipitation (mm) | 67 | 16 | 55 | 11 | 24 | 4 | 20 | 18 | 7 | 77 | 46 | 82 |
| Sunny days | 16 | 24 | 16 | 24 | 25 | 25 | 27 | 24 | 24 | 22 | 19 | 16 |
| Rainy days | 15 | 4 | 15 | 6 | 6 | 5 | 4 | 7 | 6 | 9 | 11 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Unión during the most sunny months:
The largest precipitation sum in Unión is at