Beach
El Portús
Cartagena, Spain · sea 25.7 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 24 km offshore, at the nearest open water cell of a 0.25° grid.
About
El Portús es una pequeña población del municipio de Cartagena en España. Perteneciente a la diputación de Perín, cerca de la población de Galifa (Canteras).
Questions
How warm is the sea at El Portús?
The sea off El Portús averages 25.7 °C at its warmest, in August, and 14.6 °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 El Portús?
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 El Portús?
El Portús is on the coast of Cartagena, Spain, at 37.5844, -1.0744. The map on this site flies straight to it.