Bahia Blanca weather in December 2025

Expect daytime maximum temperatures of 29°C in Bahia Blanca in December based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 66 mm of rainfall in the month.

  • 29°C maximum daytime temperature in December in Bahia Blanca29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in December in Bahia Blanca8
    8 days with some rainfall
  • 14°C minimum night-time temperature in December in Bahia Blanca14
    14°C min night temperature
  • 15 hours of daylight per day in December in Bahia Blanca15
    15 hours of daylight per day
  • Moderate heat & humidity in December in Bahia BlancaM
    Moderate heat & humidity
  • 66 mm monthly rainfall in December in Bahia Blanca66
    66 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in December in Bahia Blanca11
    11 (Extreme) UV index
  • 19°C sea temperature in December in Bahia Blanca19
    19°C sea temperature

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The December weather guide for Argentina (Bahia Blanca) 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 hot is it in Bahia Blanca in December?

Daytime temperatures usually reach 29°C in Bahia Blanca in December with moderate heat and humidity, falling to 14°C at night.

How sunny is it in Bahia Blanca in December?

There are normally 9 hours of bright sunshine each day in Bahia Blanca in December - that's 58% of daylight hours.

How warm is the sea around Bahia Blanca in December?

The average sea temperature around Bahia Blanca in December is 19°C.

Does it rain in Bahia Blanca in December?

There are usually 8 days with some rain in Bahia Blanca in December and the average monthly rainfall is 66mm.

Bahia Blanca December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:38 20:19
Tuesday, 16th December 2025 05:39 20:31
Wednesday, 31st December 2025 05:47 20:37

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