Swimming in the United States (USA) in december 2024 Sea temperature by city in december

Do you want to go to the beach in the United States (USA) in december 2024? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in december in the United States (USA) by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in the United States (USA) in december 2024

Here, find the average sea temperature in the United States (USA) in december in several coastal cities.

California

on average:

61°F

min: 59°F / max: 62°F

details

Washington D. C.

Boston

on average:

47°F

min: 42°F / max: 52°F

details

Hawaii (Honolulu)

Miami (Florida)

New York City

on average:

47°F

min: 43°F / max: 53°F

details

Seattle

on average:

47°F

min: 46°F / max: 48°F

details

Houston

on average:

61°F

min: 57°F / max: 65°F

details

Long Beach (Washington)

Myrtle Beach

on average:

62°F

min: 58°F / max: 67°F

details

Philadelphia

on average:

48°F

min: 43°F / max: 53°F

details

Portland

on average:

50°F

min: 48°F / max: 53°F

details

Atlantic City

on average:

49°F

min: 43°F / max: 55°F

details

Baltimore

on average:

51°F

min: 47°F / max: 55°F

details

Bar Harbor (Maine)

Brooklyn

on average:

48°F

min: 44°F / max: 54°F

details

Cape Cod National Seashore

Carolina Beach

on average:

63°F

min: 58°F / max: 68°F

details

Dauphin Island (Alabama)

Edisto Beach

on average:

67°F

min: 63°F / max: 70°F

details

Where should you go swimming in the United States (USA) in the month of december?

Swimming in the United States (USA) in december is pleasant (in the best case scenario)

In december in the United States (USA) swimming conditions vary by city. Details below:

As for Hawaii (Honolulu) and Miami (Florida), swimming is pleasant in december. The sea water is 78°F on average (min: 76°F/max: 80°F) so you can easily spend time in the water.

Swimming in december in Edisto Beach is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 63°F. Note that the average is 67°F.

Swimming in december in California, Houston, Myrtle Beach, Carolina Beach and Dauphin Island (Alabama) is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 61°F (min: 59°F/max: 62°F).

Forget about swimming in Washington D. C., Boston, New York City, Seattle, Long Beach (Washington), Philadelphia, Portland, Atlantic City, Baltimore, Bar Harbor (Maine), Brooklyn and Cape Cod National Seashore in december! The water temperature is freezing, reaching as low as 48°F (and only 56°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!

Where to go swimming in the United States (USA) in december: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in december

California

December
Average sea temperature 61°F
Minimum sea temperature 59°F
Maximum sea temperature 62°F
Average outside temperature 52°F
Maximum outside temperature 59°F
Minimum outside temperature 47°F
Precipitation 3.3in
Number of days of precipitation 4 jour(s)
(14%)
Cloud cover 27%
Our opinion cold swimming

More information on swimming in California in december

Washington D. C.

December
Average sea temperature 53°F
Minimum sea temperature 48°F
Maximum sea temperature 56°F
Average outside temperature 43°F
Maximum outside temperature 49°F
Minimum outside temperature 38°F
Precipitation 4.4in
Number of days of precipitation 5 jour(s)
(17%)
Cloud cover 43%
Our opinion freezing swimming

More information on swimming in Washington D. C. in december

Boston

December
Average sea temperature 47°F
Minimum sea temperature 42°F
Maximum sea temperature 52°F
Average outside temperature 38°F
Maximum outside temperature 41°F
Minimum outside temperature 34°F
Precipitation 6.1in
Number of days of precipitation 7 jour(s)
(24%)
Cloud cover 48%
Our opinion freezing swimming

More information on swimming in Boston in december

Hawaii (Honolulu)

December
Average sea temperature 78°F
Minimum sea temperature 76°F
Maximum sea temperature 80°F
Average outside temperature 76°F
Maximum outside temperature 79°F
Minimum outside temperature 74°F
Precipitation 3.3in
Number of days of precipitation 4 jour(s)
(12%)
Cloud cover 36%
Our opinion pleasant swimming

More information on swimming in Hawaii (Honolulu) in december

Miami (Florida)

December
Average sea temperature 77°F
Minimum sea temperature 75°F
Maximum sea temperature 79°F
Average outside temperature 74°F
Maximum outside temperature 77°F
Minimum outside temperature 72°F
Precipitation 2.3in
Number of days of precipitation 3 jour(s)
(9%)
Cloud cover 31%
Our opinion pleasant swimming

More information on swimming in Miami (Florida) in december

List of coastal cities in the United States (USA)

California in decembercold swimming
Washington D. C. in decemberfreezing swimming
Boston in decemberfreezing swimming
Hawaii (Honolulu) in decemberpleasant swimming
Miami (Florida) in decemberpleasant swimming
New York City in decemberfreezing swimming
Seattle in decemberfreezing swimming
Houston in decembercold swimming
Long Beach (Washington) in decemberfreezing swimming
Myrtle Beach in decembercold swimming
Philadelphia in decemberfreezing swimming
Portland in decemberfreezing swimming
Atlantic City in decemberfreezing swimming
Baltimore in decemberfreezing swimming
Bar Harbor (Maine) in decemberfreezing swimming
Brooklyn in decemberfreezing swimming
Cape Cod National Seashore in decemberfreezing swimming
Carolina Beach in decembercold swimming
Dauphin Island (Alabama) in decembercold swimming
Edisto Beach in decembercool swimming
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