Best time to swim in the United States (USA) Sea temperature by month

Do you want to go to the seaside in the United States (USA)? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in the United States (USA).

Swimming in the United States (USA) by month

Discover swimming conditions in detail in the United States (USA) by month below. Click on the links for each month to see details about the sea temperature in the cities of: California, Washington D. C., Boston, Hawaii (Honolulu) and Miami (Florida).

Month sea temperature Details
33°F to 77°F Sea temperature
in the United States (USA) in january
32°F to 77°F Sea temperature
in the United States (USA) in february
33°F to 76°F Sea temperature
in the United States (USA) in march
34°F to 79°F Sea temperature
in the United States (USA) in april
40°F to 82°F Sea temperature
in the United States (USA) in may
45°F to 85°F Sea temperature
in the United States (USA) in june
49°F to 87°F Sea temperature
in the United States (USA) in july
50°F to 88°F Sea temperature
in the United States (USA) in august
49°F to 86°F Sea temperature
in the United States (USA) in september
47°F to 83°F Sea temperature
in the United States (USA) in october
41°F to 80°F Sea temperature
in the United States (USA) in november
36°F to 78°F Sea temperature
in the United States (USA) in december

* in at least part of the area.

Where and when should you swim in the United States (USA)?

California

Best time to swim in California

The best months for swimming in California are %MONTHS.

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Washington D. C.

Best time to swim in Washington D. C.

The best months for swimming in Washington D. C. are %MONTHS.

see
Boston

Best time to swim in Boston

The best months for swimming in Boston are %MONTHS.

see
Hawaii (Honolulu)

Best time to swim in Hawaii (Honolulu)

It is possible to swim all year in Hawaii (Honolulu).

see
Miami (Florida)

Best time to swim in Miami (Florida)

It is possible to swim all year in Miami (Florida).

see

Other cities and places in the United States (USA):

Water temperatures in the United States (USA) over the entire year

On this chart, we show you the variation of the average sea water temperature in the United States (USA) for the cities of: California, Washington D. C., Boston, Hawaii (Honolulu) and Miami (Florida).

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