White sand
Saleccia beach
Corsica, France · sea 24.6 °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
La plage de Saleccia est située en Corse, le long du désert des Agriates, territoire dont l'origine du nom évoque des « terres agricoles fertiles ».
Questions
How warm is the sea at Saleccia beach?
The sea off Saleccia beach averages 24.6 °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 Saleccia beach?
The sea reaches 20 °C or more from June to October. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Saleccia beach?
Saleccia beach is on the coast of Corsica, France, at 42.7265, 9.2047. The map on this site flies straight to it.