nomadseason

May Weather in Buenos Aires, Peru

Last updated: August 27, 2025

In Buenos Aires, Peru, the average temperature in May hovers around 18°C (65°F), with a comfortable range between a minimum of 14°C (58°F) and a maximum of 23°C (73°F). Expect some light rain, with 13 mm (0.5 in) of precipitation spread over about 2 days. The atmosphere can feel quite humid, with an average humidity level of 84%. Get ready for a delightful blend of warmth and refreshing moisture!

May Temperature in Buenos Aires

In May in Buenos Aires, the average temperature is 18°C (65°F). Maximums can reach 23°C (73°F), and minimums can be as low as 14°C (58°F). This pleasant climate makes Buenos Aires an ideal destination for travelers seeking mild weather during their visit.

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 18°C (65°F), with highs reaching up to 23°C (73°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec697272686564626161616366
Data source: Temperature data for Buenos Aires generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 precipitation amount is 13 mm (0.5 in) over a span of 2 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 13 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec171628161315191924221422
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Buenos Aires

In Buenos Aires in May, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%90%89%84%73%55%53%62%82%89%91%
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 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. 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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141210101113131313
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 Weather21°C (69°F)17 mm (0.7 inches)91%extreme
February Weather22°C (72°F)16 mm (0.6 inches)89%extreme
March Weather22°C (72°F)28 mm (1.1 inches)89%extreme
April Weather20°C (68°F)16 mm (0.6 inches)88%extreme
May Weather18°C (65°F)13 mm (0.5 inches)84%extreme
June Weather18°C (64°F)15 mm (0.6 inches)73%very high
July Weather17°C (63°F)19 mm (0.8 inches)55%very high
August Weather16°C (61°F)19 mm (0.8 inches)53%extreme
September Weather16°C (61°F)24 mm (1.0 inches)62%extreme
October Weather16°C (61°F)22 mm (0.9 inches)82%extreme
November Weather17°C (63°F)13 mm (0.5 inches)89%extreme
December Weather19°C (66°F)22 mm (0.9 inches)91%extreme

Compare Buenos Aires's Climate with Cities Worldwide