Santa Barbara
California, USA
Long term weather forecast
Long term weather forecast

December weather forecast and Climate
Santa Barbara, CA

  • Average high temperature in December: 18.2°C

Warmest month (with highest average high temperature) is August (24.4°C).
Months with lowest average high temperature are January and December (18.2°C).

  • Average low temperature in December: 8.2°C

Months with highest average low temperature are July and August (15.8°C).
Coldest month (with lowest average low temperature) is January (8°C).

  • Average rainfall in December: 66mm

Wettest month (with highest rainfall) is January (97mm).
Driest months (with lowest rainfall) are June, July and August (3mm).

  • Average rainfall days in December: 4.9 days

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

  • Average sea temperature in December: 15°C

Best month for swimming (with highest average sea temperature) is September (18°C).
Coldest months (with lowest average sea temperature) are January, February, March, April and May (14°C).

  • Average daylight in December: 10h

Months with longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • Average sunshine in December: 6h

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: 3

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