Weather in San Francisco, United States in December

Search

Best
Best
Best
Best
Tan
Tan
Tan
Tan
Tan
Sea
12°
 
Sea
12°
 
Sea
15°
 
Sea
15°
 
Sea
16°
 
Sea
16°
 
Sea
16°
 
Sea
16°
 
Sea
17°
 
Sea
16°
 
Sea
16°
 
Sea
15°
 

Visiting San Francisco, United States in December

The weather in December is cooler than the previous month and temperatures continue to drop slightly into January. December has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 53% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day. It is not a good time for sunbathing in San Francisco.

December has total rainfall of 12.3cm (4.8inches) making it often dry with only moderate showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the many clear days.

Sea temperatures are a cold 15°C (59°F). December is too cold for swimming in San Francisco for any length of time, unless you have a wetsuit. The sea temperature in December is marginally cooler than the previous month and temperatures continue to drop into January.

Consider visiting San Francisco in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for December.

Can you sunbathe in San Francisco in December?

No, December is not a good time for sunbathing in San Francisco.

December has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 53% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day. December has total rainfall of 12.3cm (4.8inches) making it often dry with only moderate showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the many clear days.

More about December temperature and sunshine.

Can you swim in San Francisco in December?

No, December is too cold for swimming in San Francisco for any length of time, with the sea water at 15°C (59°F), unless you have a wetsuit.

More about December sea temperatures.

Is December a good time to holiday in San Francisco?

No, December is not a good time for a holiday in San Francisco.

December has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 53% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day. December has total rainfall of 12.3cm (4.8inches) making it often dry with only moderate showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the many clear days. It is not a good time for sunbathing in San Francisco. Sea temperatures are a cold 15°C (59°F). December is too cold for swimming in San Francisco for any length of time, unless you have a wetsuit.

More about the December temperatures and sunshine.

Is San Francisco warm in December?

No, San Francisco is a little too chilly for sunbathing in December.

The average maximum temperature in San Francisco in December is 14°C (57°F). The average maximum temperature is 18°C (64°) in the previous month and 14°C (57°F) in the next month.

The average temperature in San Francisco in December is 11°C (51°F). The average temperature is 14°C (56°F) in the previous month and 10°C (50°F) in the next month.

More info about the December temperatures and sunshine.

How sunny is San Francisco in December?

The average day light hours per day in San Francisco in December are 9.6. The sunshine percentage is 53% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day.

More about December sunshine.

Temperature in San Francisco in December

The weather in December is cooler than the previous month and temperatures continue to drop slightly into January. The average maximum temperature in San Francisco in December is 14°C (57°F). The average maximum temperature is 18°C (64°F) in the previous month and 14°C (57°F) in the next month.

The average temperature in San Francisco in December is 11°C (51°F). The average temperature is 14°C (56°F) in the previous month and 10°C (50°F) in the next month.

The average minimum temperature in San Francisco in December is 7°C (44°F). The minimum temperature is 9°C (49°F) in the previous month and 6°C (43°F) in the next month.

Sunshine in San Francisco in December

The days in December are slightly shorter than the previous month. December has fewer hours of sunshine than the previous month. During December the average day light hours are 9.6 per day in San Francisco. The sunshine percentage is 53% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day.

The ultraviolet index in San Francisco in December is typically 2.2 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 San Francisco in December

The average sea water temperature in San Francisco in December is 14.9°C (58.8°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea. The sea temperature in December is marginally cooler than the previous month and temperatures continue to drop into January.

Rainfall in San Francisco in December

December weather is wetter than the previous month. December has a few more days of rain than the previous month. The average total rainfall in San Francisco in December is 12.3cm (4.8inches) and on average there are 11.9 rainy days in December making it a pretty wet time to visit the beach.

Humidity in San Francisco in December

The maximum dew point (an indicator of humidity) in San Francisco in December is 9°C (48°F) which is a bit dry for some. The dew point is 11°C (51°F) in the previous month and 8°C (8°F) in the next month.

The average maximum relative humidity in San Francisco in December is typically 90.1%. The maximum relative humidity is 89% in the previous month and 91% in the next month.

The average relative humidity in San Francisco in December is typically 75.2%. The average relative humidity is 72.2% in the previous month and 76.1% in the next month.

Wind Speed in San Francisco in December

The average maximum wind speed in San Francisco in December is typically 28KM/H (17MPH). The average maximum wind speed is 28KM/H (17MPH) in the previous month and 26KM/H (16MPH) in the next month.

The average wind speed in San Francisco in December is typically 11KM/H (7MPH). The average wind speed is 10KM/H (6MPH) in the previous month and 9KM/H (6MPH) in the next month.

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

Monthly Averages

Suggested Beaches in December

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

Booking.com Search FlightsImage

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.