Buenos Aires weather in May 2025

Expect 66°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Buenos Aires in May. Check more long-term weather averages for Buenos Aires in May before you book your next holiday to Argentina in 2025/2026.

  • 66°F maximum daytime temperature in May in Buenos Aires66
    66°F max day temperature
  • 5 hours of sunshine per day
  • 7 days with some rainfall in May in Buenos Aires7
    7 days with some rainfall
  • 52°F minimum night-time temperature in May in Buenos Aires52
    52°F min night temperature
  • 10 hours of daylight per day in May in Buenos Aires10
    10 hours of daylight per day
  • No heat & humidity in May in Buenos Aires0
    No heat & humidity
  • 3.0 inches monthly rainfall in May in Buenos Aires3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Buenos Aires3
    3 (Moderate) UV index
  • 63°F sea temperature in May in Buenos Aires63
    63°F sea temperature

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The May weather guide for Argentina (Buenos Aires) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about Buenos Aires

How hot is it in Buenos Aires in May?

Daytime temperatures usually reach 66°F in Buenos Aires in May, falling to 52°F at night.

How sunny is it in Buenos Aires in May?

There are normally 5 hours of bright sunshine each day in Buenos Aires in May - that's 51% of daylight hours.

How warm is the sea around Buenos Aires in May?

The average sea temperature around Buenos Aires in May is 63°F.

Does it rain in Buenos Aires in May?

There are usually 7 days with some rain in Buenos Aires in May and the average monthly rainfall is 3.0 inches.

Buenos Aires May sunrise & sunset times

Browse the sunrise and sunset times for Buenos Aires in May 2025. Select a month to view Buenos Aires sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 07:30 18:11
Friday, 16th May 2025 07:41 17:58
Saturday, 31st May 2025 07:52 17:51

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