Beach
Porthcothan beach
United Kingdom · sea 16.8 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 14 km offshore, at the nearest open water cell of a 0.25° grid.
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 Porthcothan beach?
The sea off Porthcothan beach averages 16.8 °C at its warmest, in August, and 9.3 °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 Porthcothan 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 Porthcothan beach?
Porthcothan beach is on the coast of United Kingdom, at 50.5104, -5.0284. The map on this site flies straight to it.
Beaches nearby
Bedruthan StepsCornwall, United Kingdom
Watergate BeachMawgan-in-Pydar, United Kingdom
Lusty GlazeNewquay, United Kingdom
Polzeath BeachSt Minver Highlands, United Kingdom
Fistral BeachCornwall, United Kingdom
Perranporth BeachPerranzabuloe, United Kingdom
Chapel Porth BeachUnited Kingdom
Par BeachTywardreath and Par, United Kingdom