Buenos Aires weather in October 2025

Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Buenos Aires in October. Check more long-term weather averages for Buenos Aires in October before you book your next holiday to Argentina in 2025/2026.

  • 22°C maximum daytime temperature in October in Buenos Aires22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in October in Buenos Aires10
    10 days with some rainfall
  • 13°C minimum night-time temperature in October in Buenos Aires13
    13°C min night temperature
  • 13 hours of daylight per day in October in Buenos Aires13
    13 hours of daylight per day
  • No heat & humidity in October in Buenos Aires0
    No heat & humidity
  • 111 mm monthly rainfall in October in Buenos Aires111
    111 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in October in Buenos Aires8
    8 (Very High) UV index
  • 17°C sea temperature in October in Buenos Aires17
    17°C sea temperature

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The October 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 hot is it in Buenos Aires in October?

Daytime temperatures usually reach 22°C in Buenos Aires in October, falling to 13°C at night.

How sunny is it in Buenos Aires in October?

There are normally 7 hours of bright sunshine each day in Buenos Aires in October - that's 55% of daylight hours.

How warm is the sea around Buenos Aires in October?

The average sea temperature around Buenos Aires in October is 17°C.

Does it rain in Buenos Aires in October?

There are usually 10 days with some rain in Buenos Aires in October and the average monthly rainfall is 111mm.

Buenos Aires October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:30 18:57
Thursday, 16th October 2025 06:10 19:09
Friday, 31st October 2025 05:53 19:22

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