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San Onofre State Beach

San Diego County, United States · sea 21.2 °C at its warmest, in August

San Onofre State Beach

Photo: California State Parks · Attribution, via Wikimedia Commons

Sea temperature month by month

15.2Jan
15.2Feb
15.4Mar
16.1Apr
17.4May
18.8Jun
20.6Jul
21.2Aug
20.9Sep
19.6Oct
17.7Nov
16Dec

Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.

About

San Onofre State Beach (San Onofre, Spanish for "St. Onuphrius") is a 3,000-acre (1,214 ha) state park in San Diego County, California.

Beaches nearby

Questions

How warm is the sea at San Onofre State Beach?

The sea off San Onofre State Beach averages 21.2 °C at its warmest, in August, and 15.2 °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 San Onofre State Beach?

The sea reaches 20 °C or more from July to September. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.

Where is San Onofre State Beach?

San Onofre State Beach is on the coast of San Diego County, United States, at 33.3792, -117.5730. The globe on this site flies straight to it.

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