Swim in Half Moon Bay in december 2024What is the temperature of the sea in in december?
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 |
Swim elsewhere in California in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Los Angeles in december | 61°F | 63°F | cold swimming | San Francisco in december | 55°F | 57°F | freezing swimming | San Diego in december | 61°F | 63°F | cold swimming | Big Sur in december | 56°F | 58°F | freezing swimming | Carmel-by-the-Sea in december | 56°F | 58°F | freezing swimming | Eureka in december | 53°F | 57°F | freezing swimming | Hollywood in december | 61°F | 62°F | cold swimming | Malibu in december | 60°F | 61°F | cold swimming | Mendocino in december | 54°F | 58°F | freezing swimming | Morro Bay in december | 58°F | 60°F | freezing swimming | Oakland in december | 55°F | 57°F | freezing swimming | Pismo Beach in december | 58°F | 60°F | freezing swimming | San Clemente in december | 61°F | 63°F | cold swimming | Santa Barbara in december | 59°F | 60°F | freezing swimming | Santa Cruz California in december | 56°F | 58°F | freezing swimming | Santa Monica in december | 61°F | 63°F | cold swimming | Ventura in december | 59°F | 61°F | cold swimming | Bodega Bay in december | 54°F | 57°F | freezing swimming | Carlsbad in december | 61°F | 63°F | cold swimming | Huntington Beach in december | 61°F | 63°F | cold swimming |