Beach
Maitland Beach
Victoria, Australia · sea 18.8 °C at its warmest, in February

Sea temperature month by month
18.1Jan
18.8Feb
18.3Mar
17.1Apr
15.8May
14.5Jun
13.3Jul
12.7Aug
13Sep
13.8Oct
15.1Nov
16.6Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
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 Maitland Beach?
The sea off Maitland Beach averages 18.8 °C at its warmest, in February, and 12.7 °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 Maitland 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 Maitland Beach?
Maitland Beach is on the coast of Victoria, Australia, at -38.8914, 145.9833. The map on this site flies straight to it.