Beach
Marmion Beach
Western Australia, Australia · sea 22.3 °C at its warmest, in February

Sea temperature month by month
21.8Jan
22.3Feb
22.3Mar
22.1Apr
21.6May
20.8Jun
19.9Jul
19.1Aug
18.7Sep
18.8Oct
19.8Nov
20.8Dec
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 Marmion Beach?
The sea off Marmion Beach averages 22.3 °C at its warmest, in February, and 18.7 °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 Marmion Beach?
The sea reaches 20 °C or more from December to June. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Marmion Beach?
Marmion Beach is on the coast of Western Australia, Australia, at -31.8389, 115.7497. The map on this site flies straight to it.
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