Beach
Porthgwarra Beach
United Kingdom · sea 16.5 °C at its warmest, in August

Sea temperature month by month
10.4Jan
9.8Feb
9.6Mar
10.2Apr
11.7May
14Jun
15.9Jul
16.5Aug
15.6Sep
14.2Oct
12.9Nov
11.5Dec
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 Porthgwarra Beach?
The sea off Porthgwarra Beach averages 16.5 °C at its warmest, in August, and 9.6 °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 Porthgwarra 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 Porthgwarra Beach?
Porthgwarra Beach is on the coast of United Kingdom, at 50.0373, -5.6723. The map on this site flies straight to it.