Ushuaia weather in December 2025

Expect 12°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Ushuaia in December. Check more long-term weather averages for Ushuaia in December before you book your next holiday to Argentina in 2025/2026.

  • 12°C maximum daytime temperature in December in Ushuaia12
    12°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in December in Ushuaia11
    11 days with some rainfall
  • 3°C minimum night-time temperature in December in Ushuaia3
    3°C min night temperature
  • 17 hours of daylight per day in December in Ushuaia17
    17 hours of daylight per day
  • No heat & humidity in December in Ushuaia0
    No heat & humidity
  • 45 mm monthly rainfall in December in Ushuaia45
    45 mm of monthly rainfall
  • UV (maximum) index 7 (High) in December in Ushuaia7
    7 (High) UV index
  • 8°C sea temperature in December in Ushuaia8
    8°C sea temperature

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The December weather guide for Argentina (Ushuaia) 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 Argentina

How warm is it in Ushuaia in December?

Daytime temperatures usually reach 12°C in Ushuaia in December, falling to 3°C at night.

How sunny is it in Ushuaia in December?

There are normally 6 hours of bright sunshine each day in Ushuaia in December - that's 35% of daylight hours.

Is the sea cold around Ushuaia in December?

The average sea temperature around Ushuaia in December is 8°C.

Does it rain in Ushuaia in December?

There are usually 11 days with some rain in Ushuaia in December and the average monthly rainfall is 45mm.

Ushuaia December sunrise & sunset times

Browse the sunrise and sunset times for Ushuaia in December 2025. Select a month to view Ushuaia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:56 21:50
Tuesday, 16th December 2025 04:50 22:08
Wednesday, 31st December 2025 05:00 22:12

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