San Diego weather in December 2020

  • 19°C maximum daytime temperature in December in San Diego19
    19°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in December in San Diego5
    5 days with some rainfall
  • 8°C minimum night-time temperature in December in San Diego8
    8°C min night temperature
  • 10 hours of daylight per day in December in San Diego10
    10 hours of daylight per day
  • No heat & humidity in December in San Diego0
    No heat & humidity
  • 37 mm monthly rainfall in December in San Diego37
    37 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in San Diego3
    3 (Moderate) UV index
  • 15°C sea temperature in December in San Diego15
    15°C sea temperature
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The December weather guide for San Diego, California 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.

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How hot is it in San Diego in December?

Daytime temperatures usually reach 19°C in San Diego in December, falling to 8°C at night.

How sunny is it in San Diego in December?

There are normally 8 hours of bright sunshine each day in San Diego in December - that's 75% of daylight hours.

How warm is the sea around San Diego in December?

The average sea temperature around San Diego in December is 15°C.

Does it rain in San Diego in December?

There are usually 5 days with some rain in San Diego in December and the average monthly rainfall is 37mm.

San Diego sunrise & sunset times for December 2020

Browse the sunrise & sunset times for San Diego in December 2020. Select a month to view San Diego sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st December 2020 06:33 16:42
Wednesday, 16th December 2020 06:44 16:45
Thursday, 31st December 2020 06:51 16:53
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in California in December?

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

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