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Weather & Climate
Unión, San Luis, Argentina
Overview
Climate data and monthly weather averages for Unión.
Key Metrics
Annual Avg
16.9°C
Summer Avg
24.7°C
Winter Avg
8.9°C
Record High
43°C
Record Low
-5.3°C
Annual Precipitation
612.2 mm
Avg Humidity
54%
Summer Humidity
45%
Winter Humidity
63%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 43° | 25.6° | 9° | 97 | 44% | 240 | 52.5 |
| Feb | 41.6° | 24.2° | 7.5° | 90.7 | 49% | 187 | 55.6 |
| Mar | 38.4° | 21.4° | 4.7° | 74.1 | 54% | 166 | 47.6 |
| Apr | 34.2° | 16.5° | -0.4° | 52.2 | 60% | 115 | 52.4 |
| May | 30.2° | 12.1° | -4.5° | 26 | 67% | 84 | 43.6 |
| Jun | 26° | 8.5° | -4.5° | 7.8 | 67% | 72 | 49.6 |
| Jul | 25.3° | 7.8° | -5.3° | 13.6 | 65% | 79 | 53.6 |
| Aug | 32.8° | 10.3° | -4.4° | 12.4 | 56% | 109 | 51.9 |
| Sep | 35.5° | 13.7° | -3.4° | 31.2 | 50% | 141 | 48.9 |
| Oct | 40.3° | 17.5° | 1.9° | 55.5 | 49% | 183 | 54.7 |
| Nov | 39.7° | 21.4° | 4.2° | 69.6 | 44% | 220 | 55.7 |
| Dec | 42.1° | 24.2° | 5° | 82.1 | 42% | 248 | 57.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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