December weather forecast and climate
Santa Barbara, CA

Orange rooftops of the courthouse buildings of Santa Barbara in California, USA, Pacific Ocean
Orange rooftops of the courthouse buildings of Santa Barbara in California, USA, Pacific Ocean

What are the coldest months in Santa Barbara?

January and December, with an average high-temperature of 64.8°F (18.2°C), are the coldest months in Santa Barbara, California.

What is the temperature in December in Santa Barbara?

In December, in Santa Barbara, the average high-temperature is 64.8°F (18.2°C), and the average low-temperature is 46.8°F (8.2°C).

How many days does it rain in December in Santa Barbara?

In Santa Barbara, in December, during 4.9 rainfall days, typically 2.6" (66mm) of precipitation is accumulated.
Average temperature in December - Santa Barbara, CA
  • Average high temperature in December: 64.7°F

The warmest month (with the highest average high temperature) is August (76°F).
Months with the lowest average high temperature are January and December (64.7°F).

  • Average low temperature in December: 46.7°F

Months with the highest average low temperature are July and August (60.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

Average rainfall in December - Santa Barbara, CA
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is January (3.8").
Driest months (with the lowest rainfall) are June, July and August (0.1").

Average rainfall days in December - Santa Barbara, CA
  • Average rainfall days in December: 4.9 days

Months with the highest number of rainy days are January and March (6.5 days).
The month with the lowest number of rainy days is July (0.4 days).

Average sea temperature in December - Santa Barbara, CA
  • Average sea temperature in December: 58.5°F

The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is April (55.7°F).

Average daylight in December / Average sunshine in December - Santa Barbara, CA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in December - Santa Barbara, CA
  • Average UV index in December: 3

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).

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