Swimming in Boston in april 2025: Average sea temperature in april and tide times in april 2025

Average sea temperature in Boston in april 2025.

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

Minimum: 39°F

Average: 43°F

Maximum: 48°F

Other useful seasonal weather averages in april:

  • Outside temperature: 45°F to 56°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 3.1mph
  • It rains a total of 5.6in, over 7 day(s).

Should we swim in Boston in april?

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

You won't be able to swim in Boston in april! The water temperature is freezing, reaching as low as 39°F (and only 48°F at best)! Our advice: if you are going to Boston this month, plan to sightsee and forget the beach!

Note also that in april, the climate is tolerable with an average outside temperature of 51°F, 5.5in of precipitation (over 7 days) and 75.45 % humidity.

Water and normal seasonal temperatures in Boston in april

April
Average sea temperature 43°F
Minimum sea temperature 39°F
Maximum sea temperature 48°F
Average outside temperature 52°F
Maximum outside temperature 58°F
Minimum outside temperature 47°F
Wind speed 12.4mph
Wind temperature 41°F
Precipitation 5.6in
Number of days of rain 7 jour(s)
(23%)
Humidity 76%
Visibility in kilometers 8.98km
Cloud cover 48%
Our opinion freezing swimming

Chart of the tides in april 2025

Tide times in april 2025 in Boston

Swim elsewhere in the United States (USA) in april

City Average T° Max. T° Our opinion
California in april60°F63°Fcold swimming
Washington D. C. in april53°F57°Ffreezing swimming
Miami (Florida) in april79°F83°Fideal swimming
New York City in april46°F52°Ffreezing swimming
Seattle in april46°F48°Ffreezing swimming
Houston in april71°F78°Fpleasant swimming
Long Beach (Washington) in april51°F53°Ffreezing swimming
Myrtle Beach in april63°F70°Fcool swimming
Philadelphia in april47°F53°Ffreezing swimming
Portland in april50°F52°Ffreezing swimming
Atlantic City in april47°F54°Ffreezing swimming
Baltimore in april51°F55°Ffreezing swimming
Bar Harbor (Maine) in april41°F43°Ffreezing swimming
Brooklyn in april47°F54°Ffreezing swimming
Cape Cod National Seashore in april44°F48°Ffreezing swimming
Carolina Beach in april66°F73°Fcool swimming
Gulf Shores (Alabama) in april71°F77°Fpleasant swimming
Hampton Beach in april44°F48°Ffreezing swimming
Maryland in april51°F56°Ffreezing swimming
Mobile (Alabama) in april71°F77°Fpleasant swimming

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

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