May Weather in Buenos Aires, Mexico

Last updated: August 27, 2025

In May, the average temperature in Buenos Aires, Mexico is a pleasant 23°C (74°F). Expect daytime highs of up to 36°C (98°F), while nights can dip to a cool 9°C (48°F). With an average humidity of 51%, you'll feel comfortable, though keep an eye on potential rainfall, as 17 mm (0.7 in) of precipitation is expected over about 4 days.

May Temperature in Buenos Aires

In May in Buenos Aires, the average temperature is 23°C (74°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 9°C (48°F). Be prepared for warm days but bring a light jacket for cooler evenings while traveling.

May Weather in Buenos Aires: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Buenos Aires, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buenos Aires, May typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (98°F) and lows dropping to around 9°C (48°F).

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

May Precipitation in Buenos Aires

In Buenos Aires in May, the precipitation amount is 17 mm (0.7 in) over a span of 4 days.

May Precipitation Trends in Buenos Aires

The chart displays monthly precipitation patterns in Buenos Aires, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Buenos Aires, May typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Buenos Aires

In Buenos Aires in May humidity is 51%. With an average temperature of 23°C (74°F), this humidity feels like a comfortable embrace, making traveling enjoyable, though you might feel a slight stickiness in the air that encourages frequent breaks to savor refreshing drinks.

May Average Humidity in Buenos Aires

This chart illustrates the average monthly humidity levels in Buenos Aires, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Buenos Aires is approximately 51%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Buenos Aires

In Buenos Aires in May, 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 Buenos Aires, you can check here.

Maximum UV Index Levels in Buenos Aires for May

The chart shows the monthly maximum UV Index (UVI) for Buenos Aires in May, 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 May, the maximum UV index in Buenos Aires typically reaches 14, which falls under the extreme exposure category.

Data source: Buenos Aires May 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 May Weather in Buenos Aires Compares to Other Months

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

This table compares monthly weather conditions in Buenos Aires, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	11 mm (0.4 inches)	64%	very high
February Weather	18°C (64°F)	16 mm (0.6 inches)	57%	extreme
March Weather	20°C (69°F)	3 mm (0.1 inches)	46%	extreme
April Weather	22°C (71°F)	1 mm (0.0 inches)	42%	extreme
May Weather	23°C (74°F)	17 mm (0.7 inches)	51%	extreme
June Weather	23°C (74°F)	117 mm (4.6 inches)	74%	extreme
July Weather	21°C (70°F)	222 mm (8.8 inches)	79%	extreme
August Weather	21°C (70°F)	227 mm (8.9 inches)	81%	extreme
September Weather	21°C (70°F)	243 mm (9.6 inches)	84%	extreme
October Weather	20°C (69°F)	84 mm (3.3 inches)	75%	extreme
November Weather	18°C (66°F)	20 mm (0.8 inches)	71%	very high
December Weather	16°C (61°F)	12 mm (0.5 inches)	74%	very high