Swimming in Half Moon Bay in december 2024: Average sea temperature in december and tide times in december 2024

Average sea temperature in Half Moon Bay in december 2024.

In december, according to seasonal norms, the sea temperature in Half Moon Bay is:

Minimum: 53°F

Average: 55°F

Maximum: 57°F

Other useful seasonal weather averages in december:

  • Outside temperature: 52°F to 57°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 5.6mph
  • It rains a total of 2.9in, over 5 day(s).

Should we swim in Half Moon Bay in december?

No... The water temperature in Half Moon Bay in december is freezing

You won't be able to swim in Half Moon Bay 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 Half Moon Bay this month, plan to sightsee and forget the beach!

Note also that in december, the climate is tolerable with an average outside temperature of 54°F, 2.9in of precipitation (over 5 days) and 75.3 % humidity.

Water and normal seasonal temperatures in Half Moon Bay in december

December
Average sea temperature 55°F
Minimum sea temperature 53°F
Maximum sea temperature 57°F
Average outside temperature 56°F
Maximum outside temperature 58°F
Minimum outside temperature 52°F
Wind speed 11.8mph
Wind temperature 49°F
Precipitation 2.9in
Number of days of rain 5 jour(s)
(15%)
Humidity 76%
Visibility in kilometers 9.52km
Cloud cover 34%
Our opinion freezing swimming

Chart of the tides in december 2024

Tide times in december 2024 in Half Moon Bay

Swim elsewhere in California in december

City Average T° Max. T° Our opinion
Los Angeles in december61°F63°Fcold swimming
San Francisco in december55°F57°Ffreezing 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
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

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