Beach
Blå lagunen, Munsön
Ekerö Municipality, Sweden · sea 17.3 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 57 km offshore, at the nearest open water cell of a 0.25° grid.
About
The Blue Lagoon or Husbygropen is an artificial lake just beside Mälaren in the island of Munsön in Ekerö municipality, Stockholm County.
Questions
How warm is the sea at Blå lagunen, Munsön?
The sea off Blå lagunen, Munsön averages 17.3 °C at its warmest, in August, and 1.9 °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 Blå lagunen, Munsön?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Blå lagunen, Munsön?
Blå lagunen, Munsön is on the coast of Ekerö Municipality, Sweden, at 59.3736, 17.6222. The map on this site flies straight to it.
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