May weather forecast and climate
Buenos Aires, Argentina

The Congress Square monument in Buenos Aires, Argentina in spring
The Congress Square monument in Buenos Aires, Argentina in spring
May is a lovely time in Buenos Aires, but the temperatures are taking a dip to read between 11°C (51.8°F) and 19°C (66.2°F). This is the time to start pulling out the warm scarfs and sweaters in anticipation of the approaching cold season.
With the dip in temperatures comes a drop in both the sea temperatures to read 16°C (60.8°F) and also the rainfall score, which hits 88.9mm (3.5") falling at an average of 8 days. The average sunshine hours even drop to 6 per day in May - it is getting colder.
Take a walk in the lovely streets under the perfect tree shades with mild warmth and enjoy the beauty of the somber atmosphere.

What is the average temperature in May in Buenos Aires?

In Buenos Aires, Argentina, in May, the average high-temperature is 19.3°C (66.7°F), and the average low-temperature is 10.5°C (50.9°F).
Average temperature in May - Buenos Aires, Argentina
  • Average high temperature in May: 19.3°C

The warmest month (with the highest average high temperature) is January (30.4°C).
The month with the lowest average high temperature is July (16°C).

  • Average low temperature in May: 10.5°C

The month with the highest average low temperature is January (20.2°C).
The coldest month (with the lowest average low temperature) is July (7.7°C).

Average humidity in May - Buenos Aires, Argentina
  • Average humidity in May: 78%

Months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is December (64%).

Average rainfall in May - Buenos Aires, Argentina
  • Average rainfall in May: 72.3mm

The wettest month (with the highest rainfall) is March (172.3mm).
The driest month (with the lowest rainfall) is June (54.8mm).

Average rainfall days in May - Buenos Aires, Argentina
  • Average rainfall days in May: 6.6 days

The month with the highest number of rainy days is March (10 days).
The month with the lowest number of rainy days is May (6.6 days).

Average sea temperature in May - Buenos Aires, Argentina
  • Average sea temperature in May: 16.1°C

The best month for swimming (with the highest average sea temperature) is January (25°C).
The coldest month (with the lowest average sea temperature) is July (11.9°C).

Average daylight in May / Average sunshine in May - Buenos Aires, Argentina
  • Average daylight in May: 10.3h

The month with the longest days is December (Average daylight: 14.4h).
The month with shortest days is June (Average daylight: 9.9h).

  • Average sunshine in May: 5.4h

The month with most sunshine is January (Average sunshine: 8.9h).
Months with least sunshine are June and July (Average sunshine: 4.8).

Average UV index in May - Buenos Aires, Argentina
  • Average UV index in May: 3

Months with the highest UV index are January and December (UV index 12).
Months with the lowest UV index are June and July (UV index 2).

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