San Diego weather in December 2024

Expect 19°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in San Diego in December. Check more long-term weather averages for San Diego in December before you book your next holiday to California in 2024/2025.

  • 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

More about San Diego

San Diego by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for California

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The December weather guide for California (San Diego) 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)

Back to top

More about 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 December sunrise & sunset times

Browse the sunrise and sunset times for San Diego in December 2024. Select a month to view San Diego sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st December 2024 06:33 16:42
Monday, 16th December 2024 06:44 16:45
Tuesday, 31st December 2024 06:51 16:53

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^