Santa Barbara weather in December 2025

Expect 17°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Santa Barbara in December based on long-term weather averages. There is usually 5 days with some rainfall and 66 mm of average monthly rainfall in December.

  • 17°C maximum daytime temperature in December in Santa Barbara17
    17°C max day temperature
  • 6 hours of sunshine per day
  • 5 days with some rainfall in December in Santa Barbara5
    5 days with some rainfall
  • 3°C minimum night-time temperature in December in Santa Barbara3
    3°C min night temperature
  • 10 hours of daylight per day in December in Santa Barbara10
    10 hours of daylight per day
  • No heat & humidity in December in Santa Barbara0
    No heat & humidity
  • 66 mm monthly rainfall in December in Santa Barbara66
    66 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Santa Barbara3
    3 (Moderate) UV index
  • 15°C sea temperature in December in Santa Barbara15
    15°C sea temperature

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The December weather guide for California (Santa Barbara) 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 California

How warm is it in Santa Barbara in December?

Daytime temperatures usually reach 17°C in Santa Barbara in December, falling to 3°C at night.

How sunny is it in Santa Barbara in December?

There are normally 6 hours of bright sunshine each day in Santa Barbara in December - that's 59% of daylight hours.

How warm is the sea around Santa Barbara in December?

The average sea temperature around Santa Barbara in December is 15°C.

Does it rain in Santa Barbara in December?

There are usually 5 days with some rain in Santa Barbara in December and the average monthly rainfall is 66mm.

Santa Barbara December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:47 16:49
Tuesday, 16th December 2025 06:59 16:51
Wednesday, 31st December 2025 07:05 16:59

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