Golden sand
L'Arrabassada
Tarragona, Spain · sea 25.8 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
Playa Gorda är en strand i Spanien. Den är belägen i Província de Tarragona och regionen Katalonien, i den östra delen av landet, 400 km öster om huvudstaden Madrid.
Questions
How warm is the sea at L'Arrabassada?
The sea off L'Arrabassada averages 25.8 °C at its warmest, in August, and 13.1 °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 L'Arrabassada?
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 L'Arrabassada?
L'Arrabassada is on the coast of Tarragona, Spain, at 41.1194, 1.2761. The map on this site flies straight to it.