Beach
Milanesia Beach
Victoria, Australia · sea 18.1 °C at its warmest, in February

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 15 km offshore, at the nearest open water cell of a 0.25° grid.
About
Milanesia Beach is a remote ocean beach on the Great Ocean Road coast of south-western Victoria, Australia.
Questions
How warm is the sea at Milanesia Beach?
The sea off Milanesia Beach averages 18.1 °C at its warmest, in February, and 13.6 °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 Milanesia 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 Milanesia Beach?
Milanesia Beach is on the coast of Victoria, Australia, at -38.7517, 143.3128. The map on this site flies straight to it.