Beach
Rockaway Beach
San Mateo County, United States · sea 14.6 °C at its warmest, in September

Sea temperature month by month
11.9Jan
12Feb
12.1Mar
11.6Apr
11.8May
12.4Jun
13.6Jul
14.4Aug
14.6Sep
13.9Oct
13.1Nov
12.2Dec
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 Rockaway Beach?
The sea off Rockaway Beach averages 14.6 °C at its warmest, in September, and 11.6 °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 Rockaway 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 Rockaway Beach?
Rockaway Beach is on the coast of San Mateo County, United States, at 37.6100, -122.4975. The map on this site flies straight to it.
Beaches nearby
Pacifica State BeachSan Mateo County, United States
San Pedro BeachSan Mateo County, United States
Shelter Cove, Pacifica, CaliforniaCalifornia, United States
Sharp Park BeachSan Mateo County, United States
Gray Whale Cove State BeachCalifornia, United States
Montara State BeachCalifornia, United States
Montara BeachSan Mateo County, United States
Thornton State BeachSan Mateo County, United States