Weather in California, United States in December

So you're interested in going to California, United States in December

December is a cold and slightly rainy time for sunbathing in California and not really recommended. December is too cold for swimming in California for any length of time, unless you have a wetsuit. Consider visiting California in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for December.

Temperature in California in December

The average maximum temperature in California in December is 17°. The average maximum temperature is 20° in the previous month and 17° in the next month.

The average temperature in California in December is 12°. The average temperature ranges is 15° in the previous month and 12° in the next month.

The average minimum temperature in California in December is . The minimum temperature is in the previous month and in the next month.

Sunshine in California in December

The average day light hours per day in California in December are 9.8 and there are 6.2 hours of sunshine per day on average during December making it a quite sunny month with some cloud cover.

The ultraviolet index in California in December is typically 2.8 during December. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in California in December

The average sea water temperature in California in December is 16.5° which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in California in December

The average total rainfall in California in December is 39.1cm and on average there are 9.8 rainy days in December making it a slightly wet time to visit the beach.

Humidity in California in December

The maximum dew point (an indicator of humidity) in California in December is which is a bit dry for some. The dew point is 11° in the previous month and in the next month.

The average maximum relative humidity in California in December is typically 87.3%. The maximum relative humidity is 86.7% in the previous month and 86.1% in the next month.

The average relative humidity in California in December is typically 69.8%. The average relative humidity is 68.1% in the previous month and 67.6% in the next month.

Wind Speed in California in December

The average maximum wind speed in California in December is typically 22kmh. The average maximum wind speed is 21kmh in the previous month and 21kmh in the next month.

The average wind speed in California in December is typically 8kmh. The average wind speed is 8kmh in the previous month and 8kmh in the next month.

The average wind direction in California in December is from the South East.

Monthly Averages

Suggested Beaches in December

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