Buenos Aires
Argentina
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Buenos Aires, Argentina

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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 for 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.
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  • The 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).

  • The 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).

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  • The 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%).

  • The 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).

  • The 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).

  • The 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).

  • The average daylight in May: 10h

Months with the longest days are January, November and December (Average daylight: 14h).
Months with shortest days are May, June and July (Average daylight: 10h).

  • The 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).

  • The 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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