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Half Moon Bay State Beach

San Mateo County, United States · sea 14.9 °C at its warmest, in August

Half Moon Bay State Beach

Photo: Seano1~commonswiki · CC BY 2.5, via Wikimedia Commons

Sea temperature month by month

12.2Jan
12.3Feb
12.3Mar
12Apr
12.2May
12.9Jun
14.1Jul
14.9Aug
14.9Sep
14.2Oct
13.4Nov
12.5Dec

Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 13 km offshore — the nearest open-water cell in a 0.25° grid.

About

Half Moon Bay State Beach is a 4-mile (6 km) stretch of protected beaches in the state park system of California, United States, on Half Moon Bay.

Beaches nearby

Questions

How warm is the sea at Half Moon Bay State Beach?

The sea off Half Moon Bay State Beach averages 14.9 °C at its warmest, in August, and 12 °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 Half Moon Bay State 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 Half Moon Bay State Beach?

Half Moon Bay State Beach is on the coast of San Mateo County, United States, at 37.4739, -122.4486. The globe on this site flies straight to it.

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