Beach
Playa Agua Dulce
Chorrillos District, Peru · sea 21.5 °C at its warmest, in February

Sea temperature month by month
20.8Jan
21.5Feb
21.2Mar
19.7Apr
18.9May
18.4Jun
17.7Jul
17.1Aug
16.9Sep
16.9Oct
17.8Nov
19.2Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
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 Playa Agua Dulce?
The sea off Playa Agua Dulce averages 21.5 °C at its warmest, in February, and 16.9 °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 Agua Dulce?
The sea reaches 20 °C or more from January to March. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Playa Agua Dulce?
Playa Agua Dulce is on the coast of Chorrillos District, Peru, at -12.1605, -77.0265. The map on this site flies straight to it.