UTC Offset
UTC-03:00
Unión, Argentina Snapshot 2026
Where is Unión?
Unión, Argentina
- Continent
- Americas
- Country
- Argentina
- City
- Unión
- Population
- 2.3K
- Coordinates
- -35.15°, -65.95°
Unión is a city in Argentina with a population of approximately 2.3K. Average temperatures range from 4°C (39°F) in July to 33°C (91°F) in January. The best time to visit is February, March, November, December.
Time in Unión right now
Open full time & time zone page 12:19 19
Tuesday, June 30, 2026
IANA time zone
America/Argentina/San_Luis
Daylight saving
No DST
Next DST change
—
Live weather in Unión
Daylight in Unión today
View full sunrise & sunset page Sunrise
Sunset
Day length
9h 49m
Climate normals for Unión
Long-term monthly averages based on historical data.
January
Excellent 
February best
Excellent March best
Excellent April
Excellent May
Good June
Fair July
Fair August
Fair September
Good October
Good November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 33°C / 20°C | 33°C / 19°C | 9days (71 mm) Wet | 12.3h Excellent | 49% Moderate | 9.2 Very High | Excellent | View Details |
| February best | 32°C / 19°C | 32°C / 18°C | 7days (43 mm) Good | 11.8h Excellent | 51% Moderate | 8.3 Very High | Excellent | View Details |
| March best | 28°C / 16°C | 27°C / 15°C | 6days (60 mm) Good | 10h Excellent | 58% Moderate | 6.3 High | Excellent | View Details |
| April | 23°C / 12°C | 21°C / 10°C | 6days (51 mm) Good | 8.6h Good | 65% Muggy | 4.6 Moderate | Excellent | View Details |
| May | 18°C / 8°C | 15°C / 5°C | 4days (29 mm) Good | 7.4h Good | 68% Muggy | 3.7 Moderate | Good | View Details |
| June | 15°C / 5°C | 12°C / 1°C | 2days (14 mm) Excellent | 7.7h Good | 66% Muggy | 3 Moderate | Fair | View Details |
| July | 15°C / 4°C | 11°C / 0°C | 2days (11 mm) Excellent | 7.7h Good | 63% Muggy | 3.3 Moderate | Fair | View Details |
| August | 19°C / 6°C | 15°C / 2°C | 3days (17 mm) Excellent | 9h Good | 50% Moderate | 4.1 Moderate | Fair | View Details |
| September | 22°C / 9°C | 19°C / 5°C | 4days (28 mm) Good | 9.9h Good | 48% Moderate | 5.8 High | Good | View Details |
| October | 25°C / 12°C | 22°C / 8°C | 7days (63 mm) Good | 10.7h Excellent | 47% Moderate | 7.1 Very High | Good | View Details |
| November best | 29°C / 15°C | 27°C / 13°C | 8days (56 mm) Wet | 12h Excellent | 46% Moderate | 8.2 Very High | Excellent | View Details |
| December best | 32°C / 18°C | 31°C / 16°C | 7days (50 mm) Good | 12.7h Excellent | 42% Moderate | 9.1 Very High | Excellent | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 33°C / 20°C . Feb: 32°C / 19°C . Mar: 28°C / 16°C . Apr: 23°C / 12°C . May: 18°C / 8°C . Jun: 15°C / 5°C . Jul: 15°C / 4°C . Aug: 19°C / 6°C . Sep: 22°C / 9°C . Oct: 25°C / 12°C . Nov: 29°C / 15°C . Dec: 32°C / 18°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 71 mm. Feb: 43 mm. Mar: 60 mm. Apr: 51 mm. May: 29 mm. Jun: 14 mm. Jul: 11 mm. Aug: 17 mm. Sep: 28 mm. Oct: 63 mm. Nov: 56 mm. Dec: 50 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 49%. Feb: 51%. Mar: 58%. Apr: 65%. May: 68%. Jun: 66%. Jul: 63%. Aug: 50%. Sep: 48%. Oct: 47%. Nov: 46%. Dec: 42%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 25 km/h . Feb: 24 km/h . Mar: 24 km/h . Apr: 22 km/h . May: 20 km/h . Jun: 20 km/h . Jul: 21 km/h . Aug: 23 km/h . Sep: 25 km/h . Oct: 26 km/h . Nov: 27 km/h . Dec: 27 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 8. Mar: UV 6. Apr: UV 5. May: UV 4. Jun: UV 3. Jul: UV 3. Aug: UV 4. Sep: UV 6. Oct: UV 7. Nov: UV 8. Dec: UV 9.
Frequently Asked Questions
Unión has a population of approximately 2.3K.
The best months to visit Unión are February, March, November, December, when temperatures are pleasant and rainfall is lower.
Unión receives approximately 493mm of rainfall annually across 65 rainy days.
Unión is located in Argentina, in the Americas region.