Beach
Playa de Sancti Petri
Chiclana de la Frontera, Spain · sea 22.9 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
La playa de Sancti Petri se encuentra en el municipio de Chiclana de la Frontera, en la provincia de Cádiz (Andalucía, España).
Questions
How warm is the sea at Playa de Sancti Petri?
The sea off Playa de Sancti Petri averages 22.9 °C at its warmest, in August, and 15.4 °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 Playa de Sancti Petri?
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 Playa de Sancti Petri?
Playa de Sancti Petri is on the coast of Chiclana de la Frontera, Spain, at 36.3861, -6.2083. The map on this site flies straight to it.