Beach
Huk
Oslo Municipality, Norway · sea 18.4 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 58 km offshore, at the nearest open water cell of a 0.25° grid.
About
Huk is a parkland and a sandy beach (Hukodden) at the furthest south of the Bygdøy peninsula west of the city center of Oslo, Norway. The area was acquired by Aker municipality in 1921.
Questions
How warm is the sea at Huk?
The sea off Huk averages 18.4 °C at its warmest, in August, and 2.7 °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 Huk?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Huk?
Huk is on the coast of Oslo Municipality, Norway, at 59.8949, 10.6762. The map on this site flies straight to it.