Swimming in Cape Cod National Seashore in may 2025: Average sea temperature in may and tide times in may 2025

Average sea temperature in Cape Cod National Seashore in may 2025.

In may, according to seasonal norms, the sea temperature in Cape Cod National Seashore is:

Minimum: 44°F

Average: 50°F

Maximum: 55°F

Other useful seasonal weather averages in may:

  • Outside temperature: 52°F to 55°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 5.6mph
  • It rains a total of 3.8in, over 6 day(s).

Should we swim in Cape Cod National Seashore in may?

No... The water temperature in Cape Cod National Seashore in may is freezing

You won't be able to swim in Cape Cod National Seashore in may! The water temperature is freezing, reaching as low as 44°F (and only 55°F at best)! Our advice: if you are going to Cape Cod National Seashore this month, plan to sightsee and forget the beach!

Note also that in may, the climate is tolerable with an average outside temperature of 53°F, 3.8in of precipitation (over 6 days) and 87.16 % humidity.

Water and normal seasonal temperatures in Cape Cod National Seashore in may

May
Average sea temperature 50°F
Minimum sea temperature 44°F
Maximum sea temperature 55°F
Average outside temperature 54°F
Maximum outside temperature 56°F
Minimum outside temperature 52°F
Wind speed 17.4mph
Wind temperature 49°F
Precipitation 3.8in
Number of days of rain 6 jour(s)
(19%)
Humidity 88%
Visibility in kilometers 9.33km
Cloud cover 45%
Our opinion freezing swimming

Chart of the tides in may 2025

Tide times in may 2025 in Cape Cod National Seashore

Swim elsewhere in the United States (USA) in may

City Average T° Max. T° Our opinion
California in may62°F66°Fcold swimming
Washington D. C. in may58°F65°Ffreezing swimming
Boston in may49°F55°Ffreezing swimming
Miami (Florida) in may82°F85°Fideal swimming
New York City in may53°F60°Ffreezing swimming
Seattle in may47°F49°Ffreezing swimming
Houston in may78°F83°Fpleasant swimming
Long Beach (Washington) in may54°F60°Ffreezing swimming
Myrtle Beach in may71°F77°Fpleasant swimming
Philadelphia in may54°F61°Ffreezing swimming
Portland in may53°F58°Ffreezing swimming
Atlantic City in may56°F64°Ffreezing swimming
Baltimore in may57°F63°Ffreezing swimming
Bar Harbor (Maine) in may45°F49°Ffreezing swimming
Brooklyn in may54°F62°Ffreezing swimming
Carolina Beach in may71°F78°Fpleasant swimming
Gulf Shores (Alabama) in may77°F84°Fpleasant swimming
Hampton Beach in may48°F54°Ffreezing swimming
Maryland in may56°F63°Ffreezing swimming
Mobile (Alabama) in may77°F84°Fpleasant swimming

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

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