Golden sand
Platja de l'Altet
Spain · sea 26.2 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 17 km offshore, at the nearest open water cell of a 0.25° grid.
About
La playa de El Altet es el nombre de una de las playas de la pedanía del mismo nombre (El Altet), término municipal de Elche, en la provincia de Alicante.
Questions
How warm is the sea at Platja de l'Altet?
The sea off Platja de l'Altet averages 26.2 °C at its warmest, in August, and 14.1 °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 Platja de l'Altet?
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 Platja de l'Altet?
Platja de l'Altet is on the coast of Spain, at 38.2683, -0.5192. The map on this site flies straight to it.