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May Weather in Buenos Aires, Peru

Last updated: August 27, 2025

In May, the average temperature in Buenos Aires, Peru is a pleasant 24°C (75°F). However, temperatures can range from a cool 18°C (64°F) to a warm 32°C (90°F). Expect 222 mm (8.7 in) of precipitation over approximately 19 days, contributing to a notably high average humidity of 86%. Perfect weather for those who enjoy a lush, vibrant atmosphere!

May Temperature in Buenos Aires

In May in Buenos Aires, the average temperature is 24°C (75°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 18°C (64°F). This mild climate makes Buenos Aires an ideal destination for travelers seeking comfortable weather.

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 24°C (75°F), with highs reaching up to 32°C (90°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec767675757574737576767777
Data source: Temperature data for Buenos Aires generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Buenos Aires

In Buenos Aires in May, the total precipitation amount is 222 mm (8.7 in) over a period of 19 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 222 mm (8.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec222191316266222153126103143220249182
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Buenos Aires

In Buenos Aires in May, humidity is 86%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat uncomfortable and requiring travelers to stay hydrated and take breaks in the shade.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%76%81%86%86%70%47%37%42%62%76%89%
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 reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Buenos Aires.

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 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161312111214151414
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.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)222 mm (8.7 inches)80%extreme
February Weather25°C (77°F)191 mm (7.5 inches)76%extreme
March Weather24°C (76°F)316 mm (12.4 inches)81%extreme
April Weather24°C (76°F)266 mm (10.5 inches)86%extreme
May Weather24°C (75°F)222 mm (8.7 inches)86%extreme
June Weather24°C (75°F)153 mm (6.0 inches)70%extreme
July Weather23°C (74°F)126 mm (4.9 inches)47%extreme
August Weather24°C (75°F)103 mm (4.1 inches)37%extreme
September Weather24°C (76°F)143 mm (5.6 inches)42%extreme
October Weather25°C (76°F)220 mm (8.6 inches)62%extreme
November Weather25°C (77°F)249 mm (9.8 inches)76%extreme
December Weather25°C (77°F)182 mm (7.2 inches)89%extreme

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