The highest day temperature in December 2023 was 66°F. The lowest night temperature was 44°F. The average values for day and night temperatures during December were 58.2°F и 49.2°F respectivly.

The average sea surface temperature in December 2023 for Santa Susanna was 60.4°F. The maximum and minimum values were 58.8°F and 62.2°F respectively.

Most of the days in December are sunny but you can also expect cloudy and gloomy days.

Precipitation total in December for Santa Susanna is 0.8 in. It makes december the least rainy month of the year.

The average wind speed in December is 6.8 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Santa Susanna in December is 6.9 hours.