Swimming in California in august 2025 Sea temperature by city in august

In august in California swimming conditions vary by city. Details below:

Swimming in august in Los Angeles , San Diego, Encinitas, Hollywood, Malibu, Manhattan Beach, Newport Beach, Oceanside, Oxnard, San Clemente, Santa Monica, Topanga, Ventura, Carlsbad, Chula Vista and Huntington Beach is possible but the sea is generally cool. So though the sea temperature may sometimes reach 71°F, it can also go as low as 66°F. Note that the average is 68°F.

Swimming in august in Channel Islands National Park, Gaviota and Santa Barbara is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 63°F (min: 60°F/max: 66°F).

Forget about swimming in San Francisco, Big Sur, Cambria, Carmel-by-the-Sea, Crescent City, Eureka, Golden Gate National Recreation Area, Gualala, Half Moon Bay, Jenner, Klamath, McKinleyville, Mendocino, Morro Bay, Moss Beach, Oakland, Pacific Grove, Pescadero, Pismo Beach, Point Reyes, Santa Cruz California, Sea Ranch, Stinson Beach, Timber Cove, Bodega Bay and Fort Bragg in august! The water temperature is freezing, reaching as low as 55°F (and only 59°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!