Beach
Kuninkaansaari Beach
Helsinki, Finland · sea 17.2 °C at its warmest, in August

Sea temperature month by month
2Jan
0.7Feb
0.7Mar
2.2Apr
6.2May
11.4Jun
16.1Jul
17.2Aug
14.4Sep
10.3Oct
7Nov
4.2Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
recreational area
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 Kuninkaansaari Beach?
The sea off Kuninkaansaari Beach averages 17.2 °C at its warmest, in August, and 0.7 °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 Kuninkaansaari Beach?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Kuninkaansaari Beach?
Kuninkaansaari Beach is on the coast of Helsinki, Finland, at 60.1354, 25.0214. The map on this site flies straight to it.