Beach
Lang Co Beach
Phú Lộc, Vietnam · sea 29.6 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 14 km offshore, at the nearest open water cell of a 0.25° grid.
About
beach in Viet Nam
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 Lang Co Beach?
The sea off Lang Co Beach averages 29.6 °C at its warmest, in August, and 22.7 °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 Lang Co Beach?
The sea reaches 20 °C or more from All year. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Lang Co Beach?
Lang Co Beach is on the coast of Phú Lộc, Vietnam, at 16.2694, 108.0623. The map on this site flies straight to it.