Beach
Prion Beach
Tasmania, Australia · sea 15.7 °C at its warmest, in February

Sea temperature month by month
15Jan
15.7Feb
15.5Mar
14.7Apr
14.1May
13.5Jun
13.1Jul
12.4Aug
12.2Sep
12.3Oct
13Nov
13.9Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
Wikipedia has no article about this beach yet. It is on the atlas from its Wikidata record and its photograph.
Questions
How warm is the sea at Prion Beach?
The sea off Prion Beach averages 15.7 °C at its warmest, in February, and 12.2 °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 Prion Beach?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Prion Beach?
Prion Beach is on the coast of Tasmania, Australia, at -43.5300, 146.5600. The map on this site flies straight to it.