Beach

Half Moon Bay State Beach

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

See it on the map Wikipedia Wikidata OpenStreetMap

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, at the nearest open water cell of 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.

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 map on this site flies straight to it.