Beach
Pernera Beach
Agia Napa, Cyprus · sea 27.5 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 16 km offshore, at the nearest open water cell of a 0.25° grid.
Wikipedia has no article about this beach yet. It is on the atlas from its Wikidata record and its photograph.
Questions
How warm is the sea at Pernera Beach?
The sea off Pernera Beach averages 27.5 °C at its warmest, in August, and 16.7 °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 Pernera Beach?
The sea reaches 20 °C or more from May to November. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Pernera Beach?
Pernera Beach is on the coast of Agia Napa, Cyprus, at 34.9849, 33.9834. The map on this site flies straight to it.