Swimming in the United States (USA) in july 2025 Sea temperature by city in july

In july in the United States (USA) swimming conditions vary by city. Details below:

In july in Honolulu (Oahu), New Orleans, Miami, Hawaii, Key West, Maui, Florida, Captain Cook, Houston, Kekaha, Molokai, Myrtle Beach, Niihau, Pahala, St. Augustine, Tampa, Waianae, Anna Maria Island, Apalachicola, Biscayne National Park, Boynton Beach, Caladesi Island, Cameron, Captiva Island, Carolina Beach, Cedar Key, Clearwater, Cocoa Beach, Dauphin Island (Alabama), Edisto Beach, Egmont Key, Fort Lauderdale, Fort Pierce, Fort Walton Beach, Grand Isle, Gulf Islands National Seashore, Gulf Shores (Alabama), Hernando Beach, Holly Beach, Houma, island of Hawaii (Big Island), Jacksonville, Kahoolawe, Key Largo, Lake Charles, Lido Key and Lihue, swimming conditions are perfect! With water reaching a maximum of 81°F and an average of 79°F, going in the water (and staying there!) feels great.

As for Washington D. C., Kauai (Garden Isle), New York City, Hilo, Hana, Kahului, Kilauea, La'ie, Philadelphia, Atlantic City, Baltimore, Brooklyn and Lanai, swimming is pleasant in july. The sea water is 77°F on average (min: 73°F/max: 80°F) so you can easily spend time in the water.

Swimming in july in California, Los Angeles , Boston, San Diego, Cape Cod National Seashore, Encinitas, Hampton Beach, Hollywood, Malibu and Manhattan Beach is possible but the sea is generally cool. So though the sea temperature may sometimes reach 72°F, it can also go as low as 65°F. Note that the average is 68°F.

Swimming in july in Channel Islands National Park and Gaviota is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 63°F (min: 59°F/max: 66°F).

Forget about swimming in Anchorage, San Francisco, Seattle, Anchor Point, Dillingham, Dutch Harbor, Ketchikan, Long Beach (Washington), Portland, Bar Harbor (Maine), Big Sur, Cambria, Carmel-by-the-Sea, Cordova, Crescent City, Eureka, Gambell (St. Lawrence Island), Golden Gate National Recreation Area, Gualala, Haines, Half Moon Bay, Jenner, Kenai, Klamath, Kodiak, Kotzebue, La Push (Washington) and Lincoln City (Oregon) in july! The water temperature is freezing, reaching as low as 50°F (and only 56°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!