Swimming in the United States (USA) in august 2025 Sea temperature by city in august
Do you want to go to the beach in the United States (USA) in august 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in august in the United States (USA) by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in the United States (USA) in august 2025
Here, find the average sea temperature in the United States (USA) in august in several coastal cities.
Alaska in august
53°F
min: 50°F / max: 56°F
54°F
min: 50°F / max: 58°F
55°F
min: 50°F / max: 60°F
50°F
min: 48°F / max: 53°F
57°F
min: 53°F / max: 60°F
Cordova
57°F
min: 53°F / max: 60°F
Hawaii in august
80°F
min: 79°F / max: 81°F
79°F
min: 78°F / max: 81°F
80°F
min: 79°F / max: 82°F
80°F
min: 78°F / max: 81°F
80°F
min: 79°F / max: 82°F
80°F
min: 79°F / max: 82°F
Louisiana in august
87°F
min: 84°F / max: 90°F
Cameron
88°F
min: 85°F / max: 90°F
Grand Isle
88°F
min: 85°F / max: 92°F
Holly Beach
88°F
min: 85°F / max: 91°F
Houma
88°F
min: 84°F / max: 92°F
Lake Charles
88°F
min: 85°F / max: 91°F
California in august
68°F
min: 66°F / max: 71°F
57°F
min: 55°F / max: 59°F
68°F
min: 66°F / max: 71°F
59°F
min: 56°F / max: 61°F
Cambria
59°F
min: 56°F / max: 62°F
58°F
min: 56°F / max: 61°F
Florida in august
87°F
min: 85°F / max: 89°F
87°F
min: 85°F / max: 90°F
85°F
min: 82°F / max: 87°F
87°F
min: 85°F / max: 89°F
87°F
min: 85°F / max: 90°F
Apalachicola
87°F
min: 84°F / max: 88°F
Northeastern Coast in august
79°F
min: 76°F / max: 81°F
68°F
min: 66°F / max: 71°F
74°F
min: 71°F / max: 78°F
77°F
min: 73°F / max: 81°F
77°F
min: 72°F / max: 82°F
78°F
min: 75°F / max: 81°F
Northwest Coast in august
54°F
min: 52°F / max: 56°F
58°F
min: 54°F / max: 61°F
57°F
min: 55°F / max: 60°F
La Push (Washington)
53°F
min: 51°F / max: 55°F
Lincoln City (Oregon)
56°F
min: 53°F / max: 58°F
South West in august
87°F
min: 85°F / max: 90°F
South East in august
83°F
min: 81°F / max: 85°F
83°F
min: 81°F / max: 85°F
Dauphin Island (Alabama)
87°F
min: 84°F / max: 90°F
Edisto Beach
84°F
min: 82°F / max: 87°F
87°F
min: 85°F / max: 90°F
Where should you go swimming in the United States (USA) in the month of august?
Swimming in the United States (USA) in august is ideal (in the best case scenario)
In august in the United States (USA) swimming conditions vary by city. Details below:
In august in Honolulu (Oahu), New Orleans, Miami, Hawaii, Kauai (Garden Isle), Key West, Maui, Florida, Hilo, Captain Cook, Hana, Houston, Kahului, Kekaha, Kilauea, La'ie, 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, Lanai, Lido Key and Lihue, swimming conditions are perfect! With water reaching a maximum of 81°F and an average of 80°F, going in the water (and staying there!) feels great.
As for Washington D. C., New York City, Philadelphia, Atlantic City, Baltimore and Brooklyn, swimming is pleasant in august. The sea water is 79°F on average (min: 76°F/max: 81°F) so you can easily spend time in the water.
Swimming in august 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 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 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: 60°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 august! 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!
Where to go swimming in the United States (USA) in august: the map of sea temperatures
Water temperature and seasonal norms in august
Anchorage
August | |||
Average sea temperature | 53°F | ||
Minimum sea temperature | 50°F | ||
Maximum sea temperature | 56°F | ||
Average outside temperature | 58°F | ||
Maximum outside temperature | 63°F | ||
Minimum outside temperature | 52°F | ||
Precipitation | 4in | ||
Number of days of precipitation | 7 jour(s) (23%) | ||
Cloud cover | 44% | ||
Our opinion | freezing swimming |
More information on swimming in Anchorage in august
California
August | |||
Average sea temperature | 68°F | ||
Minimum sea temperature | 66°F | ||
Maximum sea temperature | 71°F | ||
Average outside temperature | 90°F | ||
Maximum outside temperature | 104°F | ||
Minimum outside temperature | 76°F | ||
Precipitation | 0.2in | ||
Cloud cover | 4% | ||
Our opinion | cool swimming |
More information on swimming in California in august
Honolulu (Oahu)
August | |||
Average sea temperature | 80°F | ||
Minimum sea temperature | 79°F | ||
Maximum sea temperature | 81°F | ||
Average outside temperature | 81°F | ||
Maximum outside temperature | 83°F | ||
Minimum outside temperature | 79°F | ||
Precipitation | 2.5in | ||
Number of days of precipitation | 3 jour(s) (9%) | ||
Cloud cover | 35% | ||
Our opinion | ideal swimming |
More information on swimming in Honolulu (Oahu) in august
New Orleans
August | |||
Average sea temperature | 87°F | ||
Minimum sea temperature | 84°F | ||
Maximum sea temperature | 90°F | ||
Average outside temperature | 86°F | ||
Maximum outside temperature | 92°F | ||
Minimum outside temperature | 81°F | ||
Precipitation | 7.7in | ||
Number of days of precipitation | 13 jour(s) (43%) | ||
Cloud cover | 27% | ||
Our opinion | ideal swimming |
More information on swimming in New Orleans in august
Los Angeles
August | |||
Average sea temperature | 68°F | ||
Minimum sea temperature | 66°F | ||
Maximum sea temperature | 71°F | ||
Average outside temperature | 81°F | ||
Maximum outside temperature | 86°F | ||
Minimum outside temperature | 74°F | ||
Precipitation | 0.2in | ||
Number of days of precipitation | 0 jour(s) (1%) | ||
Cloud cover | 6% | ||
Our opinion | cool swimming |
More information on swimming in Los Angeles in august
List of coastal cities in the United States (USA)
Anchorage in august | freezing swimming |
California in august | cool swimming |
Honolulu (Oahu) in august | ideal swimming |
New Orleans in august | ideal swimming |
Los Angeles in august | cool swimming |
Miami in august | ideal swimming |
Washington D. C. in august | pleasant swimming |
Boston in august | cool swimming |
Hawaii in august | ideal swimming |
Kauai (Garden Isle) in august | ideal swimming |
Key West in august | ideal swimming |
Maui in august | ideal swimming |
Florida in august | ideal swimming |
New York City in august | pleasant swimming |
San Francisco in august | freezing swimming |
Seattle in august | freezing swimming |
Anchor Point in august | freezing swimming |
Hilo in august | ideal swimming |
Captain Cook in august | ideal swimming |
Dillingham in august | freezing swimming |
Dutch Harbor in august | freezing swimming |
Hana in august | ideal swimming |
Houston in august | ideal swimming |
Kahului in august | ideal swimming |
Kekaha in august | ideal swimming |
Ketchikan in august | freezing swimming |
Kilauea in august | ideal swimming |
La'ie in august | ideal swimming |
Long Beach (Washington) in august | freezing swimming |
Molokai in august | ideal swimming |
Myrtle Beach in august | ideal swimming |
Niihau in august | ideal swimming |
Pahala in august | ideal swimming |
Philadelphia in august | pleasant swimming |
Portland in august | freezing swimming |
St. Augustine in august | ideal swimming |
San Diego in august | cool swimming |
Tampa in august | ideal swimming |
Waianae in august | ideal swimming |
Anna Maria Island in august | ideal swimming |
Apalachicola in august | ideal swimming |
Atlantic City in august | pleasant swimming |
Baltimore in august | pleasant swimming |
Bar Harbor (Maine) in august | freezing swimming |
Big Sur in august | freezing swimming |
Biscayne National Park in august | ideal swimming |
Boynton Beach in august | ideal swimming |
Brooklyn in august | pleasant swimming |
Caladesi Island in august | ideal swimming |
Cambria in august | freezing swimming |
Cameron in august | ideal swimming |
Cape Cod National Seashore in august | cool swimming |
Captiva Island in august | ideal swimming |
Carmel-by-the-Sea in august | freezing swimming |
Carolina Beach in august | ideal swimming |
Cedar Key in august | ideal swimming |
Channel Islands National Park in august | cold swimming |
Clearwater in august | ideal swimming |
Cocoa Beach in august | ideal swimming |
Cordova in august | freezing swimming |
Crescent City in august | freezing swimming |
Dauphin Island (Alabama) in august | ideal swimming |
Edisto Beach in august | ideal swimming |
Egmont Key in august | ideal swimming |
Encinitas in august | cool swimming |
Eureka in august | freezing swimming |
Fort Lauderdale in august | ideal swimming |
Fort Pierce in august | ideal swimming |
Fort Walton Beach in august | ideal swimming |
Gambell (St. Lawrence Island) in august | freezing swimming |
Gaviota in august | cold swimming |
Golden Gate National Recreation Area in august | freezing swimming |
Grand Isle in august | ideal swimming |
Gualala in august | freezing swimming |
Gulf Islands National Seashore in august | ideal swimming |
Gulf Shores (Alabama) in august | ideal swimming |
Haines in august | freezing swimming |
Half Moon Bay in august | freezing swimming |
Hampton Beach in august | cool swimming |
Hernando Beach in august | ideal swimming |
Holly Beach in august | ideal swimming |
Hollywood in august | cool swimming |
Houma in august | ideal swimming |
island of Hawaii (Big Island) in august | ideal swimming |
Jacksonville in august | ideal swimming |
Jenner in august | freezing swimming |
Kahoolawe in august | ideal swimming |
Kenai in august | freezing swimming |
Key Largo in august | ideal swimming |
Klamath in august | freezing swimming |
Kodiak in august | freezing swimming |
Kotzebue in august | freezing swimming |
La Push (Washington) in august | freezing swimming |
Lake Charles in august | ideal swimming |
Lanai in august | ideal swimming |
Lido Key in august | ideal swimming |
Lihue in august | ideal swimming |
Lincoln City (Oregon) in august | freezing swimming |
Malibu in august | cool swimming |
Manhattan Beach in august | cool swimming |