Swimming in San Francisco in december 2024: Average sea temperature in december and tide times in december 2024

Average sea temperature in San Francisco in december 2024.

In december, according to seasonal norms, the sea temperature in San Francisco is:

Minimum: 53°F

Average: 55°F

Maximum: 57°F

Other useful seasonal weather averages in december:

  • Outside temperature: 49°F to 58°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 5mph
  • It rains a total of 2.5in, over 4 day(s).

Should we swim in San Francisco in december?

No... The water temperature in San Francisco in december is freezing

You won't be able to swim in San Francisco in december! The water temperature is freezing, reaching as low as 53°F (and only 57°F at best)! Our advice: if you are going to San Francisco this month, plan to sightsee and forget the beach!

Note also that in december, the climate is tolerable with an average outside temperature of 53°F, 2.5in of precipitation (over 4 days) and 76.31 % humidity.

Water and normal seasonal temperatures in San Francisco in december

December
Average sea temperature 55°F
Minimum sea temperature 53°F
Maximum sea temperature 57°F
Average outside temperature 54°F
Maximum outside temperature 59°F
Minimum outside temperature 49°F
Wind speed 8.7mph
Wind temperature 47°F
Precipitation 2.5in
Number of days of rain 4 jour(s)
(13%)
Humidity 77%
Visibility in kilometers 9.48km
Cloud cover 33%
Our opinion freezing swimming

Chart of the tides in december 2024

Tide times in december 2024 in San Francisco

Swim elsewhere in California in december

City Average T° Max. T° Our opinion
Los Angeles in december61°F63°Fcold swimming
San Diego in december61°F63°Fcold swimming
Big Sur in december56°F58°Ffreezing swimming
Carmel-by-the-Sea in december56°F58°Ffreezing swimming
Eureka in december53°F57°Ffreezing swimming
Half Moon Bay in december55°F57°Ffreezing swimming
Hollywood in december61°F62°Fcold swimming
Malibu in december60°F61°Fcold swimming
Mendocino in december54°F58°Ffreezing swimming
Morro Bay in december58°F60°Ffreezing swimming
Oakland in december55°F57°Ffreezing swimming
Pismo Beach in december58°F60°Ffreezing swimming
San Clemente in december61°F63°Fcold swimming
Santa Barbara in december59°F60°Ffreezing swimming
Santa Cruz California in december56°F58°Ffreezing swimming
Santa Monica in december61°F63°Fcold swimming
Ventura in december59°F61°Fcold swimming
Bodega Bay in december54°F57°Ffreezing swimming
Carlsbad in december61°F63°Fcold swimming
Huntington Beach in december61°F63°Fcold swimming

Swim in California in december: sea temperature by city

Change units