Beach
Plage de Sylvabelle
France · sea 24 °C at its warmest, in August

Sea temperature month by month
13.6Jan
13.2Feb
13.5Mar
14.5Apr
17.2May
20.6Jun
23.1Jul
24Aug
21.9Sep
19.4Oct
17Nov
14.9Dec
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 Plage de Sylvabelle?
The sea off Plage de Sylvabelle averages 24 °C at its warmest, in August, and 13.2 °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 Plage de Sylvabelle?
The sea reaches 20 °C or more from June to September. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Plage de Sylvabelle?
Plage de Sylvabelle is on the coast of France, at 43.1867, 6.5828. The map on this site flies straight to it.