Buenos Aires weather in August 2025

Expect 17°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Buenos Aires in August. Check more long-term weather averages for Buenos Aires in August before you book your next holiday to Argentina in 2025/2026.

  • 17°C maximum daytime temperature in August in Buenos Aires17
    17°C max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in August in Buenos Aires7
    7 days with some rainfall
  • 8°C minimum night-time temperature in August in Buenos Aires8
    8°C min night temperature
  • 11 hours of daylight per day in August in Buenos Aires11
    11 hours of daylight per day
  • No heat & humidity in August in Buenos Aires0
    No heat & humidity
  • 67 mm monthly rainfall in August in Buenos Aires67
    67 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Buenos Aires4
    4 (Moderate) UV index
  • 13°C sea temperature in August in Buenos Aires13
    13°C sea temperature

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The August 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 / mm)  |  Imperial (°F / inches)

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More about Buenos Aires

How warm is it in Buenos Aires in August?

Daytime temperatures usually reach 17°C in Buenos Aires in August, falling to 8°C at night.

How sunny is it in Buenos Aires in August?

There are normally 6 hours of bright sunshine each day in Buenos Aires in August - that's 51% of daylight hours.

How warm is the sea around Buenos Aires in August?

The average sea temperature around Buenos Aires in August is 13°C.

Does it rain in Buenos Aires in August?

There are usually 7 days with some rain in Buenos Aires in August and the average monthly rainfall is 67mm.

Buenos Aires August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:47 18:13
Saturday, 16th August 2025 07:32 18:24
Sunday, 31st August 2025 07:13 18:35

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