Beach
John D. MacArthur Beach State Park
Florida, United States · sea 29.5 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 18 km offshore, at the nearest open water cell of a 0.25° grid.
About
John D. MacArthur Beach State Park, named for John D. MacArthur whose Foundation donated a portion of the land for its construction in the 1970s, is located on and just north of Singer…
Questions
How warm is the sea at John D. MacArthur Beach State Park?
The sea off John D. MacArthur Beach State Park averages 29.5 °C at its warmest, in August, and 24.8 °C at its coolest. These are monthly means from NOAA's OISST v2.1 satellite and buoy record for 1991 to 2020, sampled at the beach's own coordinates.
When can you swim at John D. MacArthur Beach State Park?
The sea reaches 20 °C or more from All year. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is John D. MacArthur Beach State Park?
John D. MacArthur Beach State Park is on the coast of Florida, United States, at 26.8311, -80.0461. The map on this site flies straight to it.
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