Swim in Half Moon Bay in january 2025What is the temperature of the sea in in january?

Average sea temperature in Half Moon Bay in january 2025.

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

Minimum: 50°F

Average: 54°F

Maximum: 57°F

Other useful seasonal weather averages in january:

  • Outside temperature: 51°F to 58°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 5.6mph
  • It rains a total of 3.1in, over 5 day(s).

Should we swim in Half Moon Bay in january?

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

You won't be able to swim in Half Moon Bay in january! The water temperature is freezing, reaching as low as 50°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 january, the climate is tolerable with an average outside temperature of 55°F, 3in of precipitation (over 5 days) and 77.21 % humidity.

Water and normal seasonal temperatures in Half Moon Bay in january

January
Average sea temperature 54°F
Minimum sea temperature 50°F
Maximum sea temperature 57°F
Average outside temperature 56°F
Maximum outside temperature 59°F
Minimum outside temperature 52°F
Wind speed 10.6mph
Wind temperature 49°F
Precipitation 3.1in
Number of days of rain 5 jour(s)
(15%)
Humidity 78%
Visibility in kilometers 9.55km
Cloud cover 33%
Our opinion freezing swimming

Swim elsewhere in California in january

City Average T° Max. T° Our opinion
Los Angeles in january59°F61°Ffreezing swimming
San Francisco in january54°F57°Ffreezing swimming
San Diego in january60°F62°Fcold swimming
Big Sur in january54°F58°Ffreezing swimming
Carmel-by-the-Sea in january55°F58°Ffreezing swimming
Eureka in january52°F55°Ffreezing swimming
Hollywood in january59°F61°Ffreezing swimming
Malibu in january58°F61°Ffreezing swimming
Mendocino in january53°F55°Ffreezing swimming
Morro Bay in january56°F59°Ffreezing swimming
Oakland in january54°F57°Ffreezing swimming
Pismo Beach in january56°F59°Ffreezing swimming
San Clemente in january59°F62°Fcold swimming
Santa Barbara in january57°F60°Ffreezing swimming
Santa Cruz California in january54°F58°Ffreezing swimming
Santa Monica in january59°F61°Ffreezing swimming
Ventura in january58°F61°Ffreezing swimming
Bodega Bay in january53°F56°Ffreezing swimming
Carlsbad in january59°F61°Ffreezing swimming
Huntington Beach in january59°F61°Ffreezing swimming

Swim in California in january: sea temperature by city

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