Argentina weather in January 2025

Expect 29°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Argentina in January. Check more long-term weather averages for Argentina in January before you book your next holiday to Argentina in 2025/2026.

  • 29°C maximum daytime temperature in January in Argentina (Buenos Aires)29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in January in Argentina (Buenos Aires)8
    8 days with some rainfall
  • 20°C minimum night-time temperature in January in Argentina (Buenos Aires)20
    20°C min night temperature
  • 14 hours of daylight per day in January in Argentina (Buenos Aires)14
    14 hours of daylight per day
  • Moderate heat & humidity in January in Argentina (Buenos Aires)M
    Moderate heat & humidity
  • 107 mm monthly rainfall in January in Argentina (Buenos Aires)107
    107 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Argentina (Buenos Aires)11
    11+ (Extreme) UV index
  • 24°C sea temperature in January in Argentina (Buenos Aires)24
    24°C sea temperature

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The January 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.

Top Argentina destinations

Below are average maximum temperatures at popular destinations in Argentina in January. Select a destination to see more weather parameters.

All Argentina destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Argentina

How hot is it in Argentina in January?

Daytime temperatures usually reach 29°C in Buenos Aires, Argentina in January with moderate heat and humidity, falling to 20°C at night.

How sunny is it in Argentina in January?

There are normally 9 hours of bright sunshine each day in Buenos Aires, Argentina in January - that's 60% of daylight hours.

How warm is the sea around Argentina in January?

The average sea temperature around Buenos Aires, Argentina in January is 24°C.

Does it rain in Argentina in January?

There are usually 8 days with some rain in Buenos Aires, Argentina in January and the average monthly rainfall is 107mm.

Argentina January sunrise & sunset times

Browse the sunrise and sunset times for Argentina in January 2025. Select a month to view Argentina sunrise and sunset times for the next 12 months. The Argentina sunrise and sunset times shown below are for Buenos Aires.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:45 20:10
Thursday, 16th January 2025 05:58 20:09
Friday, 31st January 2025 06:13 20:01

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