April Weather in Union, Argentina

Last updated: August 22, 2025

In April, the average temperature in Union, Argentina hovers around 18°C (64°F). Expect a minimum of 3°C (37°F) and a maximum of 34°C (93°F). During this month, anticipate a precipitation amount of 57 mm (2.2 in) spread across 7 days, and experience an average humidity level of 67%.

April Temperature in Union

In April in Union, the average temperature is a comfortable 18°C (64°F). Maximum temperatures can reach as high as 34°C (93°F), while the minimum can drop to 3°C (37°F). Be prepared for a range of temperatures while enjoying your travel experience!

April Weather in Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, April typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (37°F).

Data source: Temperature data for Union generated using information from the Copernicus Climate Change Service.

April Precipitation in Union

In Union in April, the precipitation amount is 57 mm (2.2 in) over the course of 7 days.

April Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Union, April typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Union

In Union in April humidity is 67%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel quite comfortable but slightly sticky, encouraging lightweight clothing and the occasional refreshing break in the shade.

April Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Union is approximately 67%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Union

In Union in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Union.

Maximum UV Index Levels in Union for April

The chart shows the monthly maximum UV Index (UVI) for Union in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Union typically reaches 7, which falls under the high exposure category.

Data source: Union April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How April Weather in Union Compares to Other Months

Weather in Union varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Union, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Union, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	54 mm (2.1 inches)	44%	extreme
February Weather	25°C (77°F)	28 mm (1.1 inches)	52%	extreme
March Weather	21°C (71°F)	65 mm (2.6 inches)	57%	extreme
April Weather	18°C (64°F)	57 mm (2.2 inches)	67%	high
May Weather	13°C (56°F)	38 mm (1.5 inches)	70%	moderate
June Weather	9°C (48°F)	24 mm (0.9 inches)	61%	moderate
July Weather	9°C (48°F)	17 mm (0.7 inches)	60%	moderate
August Weather	12°C (53°F)	10 mm (0.4 inches)	55%	high
September Weather	15°C (59°F)	37 mm (1.5 inches)	51%	very high
October Weather	18°C (64°F)	37 mm (1.5 inches)	47%	extreme
November Weather	21°C (71°F)	66 mm (2.6 inches)	46%	extreme
December Weather	25°C (76°F)	58 mm (2.3 inches)	44%	extreme