March Weather in Union de San Antonio, Mexico

Last updated: August 27, 2025

In March, the average temperature in Union de San Antonio, Mexico is a comfortable 21°C (70°F). Expect a minimum of 7°C (45°F) and a maximum reaching up to 34°C (94°F). With a light precipitation amount of 4 mm (0.2 in) over just 1 day, you can enjoy the outdoors with relative comfort, thanks to an average humidity level of 58%.

March Temperature in Union de San Antonio

In March, in Union de San Antonio, the average temperature is 21°C (70°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 7°C (45°F). Be prepared for warm days and cool evenings, making it an ideal time for outdoor activities.

March Weather in Union de San Antonio: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Union de San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union de San Antonio, March typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (45°F).

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

March Precipitation in Union de San Antonio

In Union de San Antonio in March, the precipitation amount is 4 mm (0.2 in) during 1 day.

March Precipitation Trends in Union de San Antonio

The chart displays monthly precipitation patterns in Union de San Antonio, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Union de San Antonio, March typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Union de San Antonio

In Union de San Antonio in March, humidity is 58%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, creating a tropical atmosphere that's perfect for leisurely strolls but may require frequent breaks to stay hydrated during your travels.

March Average Humidity in Union de San Antonio

This chart illustrates the average monthly humidity levels in Union de San Antonio, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Union de San Antonio is approximately 58%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Union de San Antonio

In Union de San Antonio in March, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Union de San Antonio, you can check here.

Maximum UV Index Levels in Union de San Antonio for March

The chart shows the monthly maximum UV Index (UVI) for Union de San Antonio in March, 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 March, the maximum UV index in Union de San Antonio typically reaches 14, which falls under the extreme exposure category.

Data source: Union de San Antonio March 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 March Weather in Union de San Antonio Compares to Other Months

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

This table compares monthly weather conditions in Union de San Antonio, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (60°F)	7 mm (0.3 inches)	74%	very high
February Weather	18°C (64°F)	9 mm (0.4 inches)	65%	extreme
March Weather	21°C (70°F)	4 mm (0.2 inches)	58%	extreme
April Weather	23°C (73°F)	1 mm (0.1 inches)	58%	extreme
May Weather	24°C (75°F)	29 mm (1.2 inches)	67%	extreme
June Weather	23°C (73°F)	152 mm (6.0 inches)	76%	extreme
July Weather	20°C (69°F)	173 mm (6.8 inches)	67%	extreme
August Weather	21°C (69°F)	137 mm (5.4 inches)	68%	extreme
September Weather	20°C (68°F)	139 mm (5.5 inches)	81%	extreme
October Weather	20°C (68°F)	48 mm (1.9 inches)	83%	extreme
November Weather	18°C (64°F)	14 mm (0.6 inches)	84%	very high
December Weather	15°C (60°F)	6 mm (0.2 inches)	81%	very high