Swim in Seattle in december 2024What is the temperature of the sea in in december?

Average sea temperature in Seattle in december 2024.

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

Minimum: 46°F

Average: 47°F

Maximum: 48°F

Other useful seasonal weather averages in december:

  • Outside temperature: 37°F to 45°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 0.6mph
  • It rains a total of 3in, over 5 day(s).

Should we swim in Seattle in december?

No... The water temperature in Seattle in december is freezing

You won't be able to swim in Seattle in december! The water temperature is freezing, reaching as low as 46°F (and only 48°F at best)! Our advice: if you are going to Seattle this month, plan to sightsee and forget the beach!

Note also that in december, the climate is very bad with an average outside temperature of 41°F, 3in of precipitation (over 5 days) and 87.99 % humidity.

Water and normal seasonal temperatures in Seattle in december

December
Average sea temperature 47°F
Minimum sea temperature 46°F
Maximum sea temperature 48°F
Average outside temperature 41°F
Maximum outside temperature 47°F
Minimum outside temperature 38°F
Wind speed 6.8mph
Wind temperature 34°F
Precipitation 3in
Number of days of rain 5 jour(s)
(17%)
Humidity 88%
Visibility in kilometers 8.33km
Cloud cover 54%
Our opinion freezing swimming

Swim elsewhere in the United States (USA) in december

City Average T° Max. T° Our opinion
California in december61°F62°Fcold swimming
Washington D. C. in december53°F56°Ffreezing swimming
Boston in december47°F52°Ffreezing swimming
Miami (Florida) in december77°F79°Fpleasant swimming
New York City in december47°F53°Ffreezing swimming
Houston in december61°F65°Fcold swimming
Long Beach (Washington) in december50°F53°Ffreezing swimming
Myrtle Beach in december62°F67°Fcold swimming
Philadelphia in december48°F53°Ffreezing swimming
Portland in december50°F53°Ffreezing swimming
Atlantic City in december49°F55°Ffreezing swimming
Baltimore in december51°F55°Ffreezing swimming
Bar Harbor (Maine) in december46°F50°Ffreezing swimming
Brooklyn in december48°F54°Ffreezing swimming
Cape Cod National Seashore in december47°F51°Ffreezing swimming
Carolina Beach in december63°F68°Fcold swimming
Gulf Shores (Alabama) in december65°F69°Fcool swimming
Hampton Beach in december46°F50°Ffreezing swimming
Maryland in december51°F56°Ffreezing swimming
Mobile (Alabama) in december63°F67°Fcold swimming

Swim in the United States (USA) in december: sea temperature by city

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