Swim in Boston in march 2025What is the temperature of the sea in in march?

Average sea temperature in Boston in march 2025.

In march, according to seasonal norms, the sea temperature in Boston is:

Minimum: 36°F

Average: 39°F

Maximum: 42°F

Other useful seasonal weather averages in march:

  • Outside temperature: 34°F to 45°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at -1.9mph
  • It rains a total of 6.3in, over 6 day(s).

Should we swim in Boston in march?

No... The water temperature in Boston in march is freezing

You won't be able to swim in Boston in march! The water temperature is freezing, reaching as low as 36°F (and only 42°F at best)! Our advice: if you are going to Boston this month, plan to sightsee and forget the beach!

Note also that in march, the climate is very bad with an average outside temperature of 39°F, 6.3in of precipitation (over 6 days) and 79.15 % humidity.

Water and normal seasonal temperatures in Boston in march

March
Average sea temperature 39°F
Minimum sea temperature 36°F
Maximum sea temperature 42°F
Average outside temperature 40°F
Maximum outside temperature 45°F
Minimum outside temperature 34°F
Wind speed 13.1mph
Wind temperature 27°F
Precipitation 6.3in
Number of days of rain 6 jour(s)
(20%)
Humidity 80%
Visibility in kilometers 8.44km
Cloud cover 50%
Our opinion freezing swimming

Swim elsewhere in the United States (USA) in march

City Average T° Max. T° Our opinion
California in march59°F62°Ffreezing swimming
Washington D. C. in march47°F50°Ffreezing swimming
Miami (Florida) in march76°F81°Fpleasant swimming
New York City in march40°F44°Ffreezing swimming
Seattle in march46°F49°Ffreezing swimming
Houston in march63°F71°Fcool swimming
Long Beach (Washington) in march49°F53°Ffreezing swimming
Myrtle Beach in march57°F61°Ffreezing swimming
Philadelphia in march41°F45°Ffreezing swimming
Portland in march49°F52°Ffreezing swimming
Atlantic City in march41°F45°Ffreezing swimming
Baltimore in march45°F49°Ffreezing swimming
Bar Harbor (Maine) in march39°F42°Ffreezing swimming
Brooklyn in march41°F45°Ffreezing swimming
Cape Cod National Seashore in march40°F42°Ffreezing swimming
Carolina Beach in march59°F65°Ffreezing swimming
Gulf Shores (Alabama) in march64°F71°Fcool swimming
Hampton Beach in march39°F42°Ffreezing swimming
Maryland in march46°F49°Ffreezing swimming
Mobile (Alabama) in march64°F71°Fcool swimming

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

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