Beach
Plage du Diamant
Le Diamant, France · sea 29.1 °C at its warmest, in September

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 15 km offshore, at the nearest open water cell of a 0.25° grid.
About
La plage du Diamant ou Grande Anse du Diamant est une plage de près de 3 kilomètres de long, située au sud de la presqu'île du Diamant, sur la commune du Diamant en Martinique.
Questions
How warm is the sea at Plage du Diamant?
The sea off Plage du Diamant averages 29.1 °C at its warmest, in September, and 26.7 °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 du Diamant?
The sea reaches 20 °C or more from All year. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Plage du Diamant?
Plage du Diamant is on the coast of Le Diamant, France, at 14.4776, -61.0315. The map on this site flies straight to it.