Measurements:
°C
°F
San Francisco
56°F
SW 2 mph
Feels like: 56°F
Precip: 0%
World Resorts USA San Francisco Weather December Weather in San Francisco

San Francisco Weather: December

Average Day Temperature: 54.7°F
Average Night Temperature: 50.1°F
Sea Water Temperature: 54.5°F
Number of Sunny Days: 14 days
Sunshine Hours: 9.5 - 9.7 hours
Number of Rainy Days: 4 days
Precipitation Totals: 2.2 in

Air Temperature in December, °F

Select Year: 2023 2022 2021

The highest day temperature in December 2023 was 61°F. The lowest night temperature was 47°F. The average values for day and night temperatures during December were 57.3°F и 53.8°F respectivly.

San Francisco Water Sea Temperature in December, °F

Select Year: 2023 2022 2021

The average sea surface temperature in December 2023 for San Francisco was 56.2°F. The maximum and minimum values were 54.8°F and 57.2°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in December, in

Precipitation total in December for San Francisco is 2.2 in. It makes december one of the most rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 8.0 mph.

Average Sunny Hours Per Day

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 San Francisco in December is 5.7 hours.

Best Time to Visit San Francisco
The most sunny months:
June 19 days
September 18 days
October 18 days
The most warm months:
August 67.6 °F
September 66.7 °F
October 65.5 °F
Warmest sea temperature:
September 63.2 °F
August 62.8 °F
October 61.6 °F
The most cold months:
December 54.7 °F
January 55.2 °F
February 56.2 °F
The most rainy months:
February 4 days
March 4 days
December 4 days
The most windy months:
May 10 mph
June 9 mph
April 9 mph

San Francisco on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
San Francisco
Local time: 06:45
05 nov, tuesday
0900 54°F
SW
2 mph
1200 60°F
S
4 mph
1500 64°F
SE
6 mph
1800 62°F
E
7 mph
2100 60°F
E
3 mph
06 nov, wednesday
0000 60°F
SE
5 mph
0300 58°F
S
10 mph
0600 56°F
S
16 mph