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San Diego weather in December 2020
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- 1919°C max day temperature
- 55 days with some rainfall
- 88°C min night temperature
- 1010 hours of daylight per day
- 0No heat & humidity
- 3737 mm of monthly rainfall
- 33 (Moderate) UV index
- 1515°C sea temperature
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.
Recommended for California
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.
|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)
Discover more about California
Where is hot in California in December for 2020/2021?
Below are average maximum temperatures at popular destinations in California in December. Select a destination to see more weather parameters.
- Los Angeles
- Beverly Hills
- San Diego
- Santa Monica
- Death Valley
- Santa Barbara
- San Francisco
- Big Sur
- Palm Springs
- Lake Tahoe
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