The USA resorts with the warmest sea water temperature in July are Key West, Islamorada and Key Largo.
Below you can see a list of all popular USA resorts and information about sea water temperature in July for the last two years.
| Resort Name | July 2026 | July 2025 | July 2024 |
|---|---|---|---|
| Key West | 92.8°F | 90.8°F | 91.7°F |
| Islamorada | 92.6°F | 90.5°F | 91.6°F |
| Key Largo | 92.4°F | 90.3°F | 91.2°F |
| Sanibel Island | 92.3°F | 91.0°F | 91.9°F |
| Marco Island | 92.3°F | 90.7°F | 91.6°F |
| Everglades | 92.2°F | 90.0°F | 92.1°F |
| Clearwater Beach | 92.2°F | 91.2°F | 92.6°F |
| St. Petersburg | 92.1°F | 91.2°F | 92.3°F |
| Naples | 91.9°F | 90.6°F | 91.3°F |
| Tampa | 91.8°F | 90.9°F | 91.5°F |
| Sarasota | 91.8°F | 91.0°F | 92.1°F |
| Cape Coral | 91.8°F | 90.5°F | 91.4°F |
| Siesta Key | 91.8°F | 91.0°F | 92.1°F |
| New Orleans | 91.7°F | 91.6°F | 91.2°F |
| Grand Isle | 91.5°F | 92.5°F | 91.9°F |
| Miami | 91.5°F | 90.4°F | 91.0°F |
| Hialeah | 91.2°F | 90.1°F | 90.7°F |
| Miami Beach | 91.1°F | 90.0°F | 90.6°F |
| Avery Island | 91.1°F | 91.3°F | 90.8°F |
| Pass Christian | 91.0°F | 91.4°F | 90.8°F |
| Long Beach | 91.0°F | 91.3°F | 90.8°F |
| Bay Saint Louis | 90.9°F | 91.3°F | 90.8°F |
| Biloxi | 90.9°F | 91.2°F | 91.1°F |
| Ocean Springs | 90.9°F | 91.2°F | 91.1°F |
| Gulfport | 90.8°F | 91.2°F | 90.7°F |
| Houston | 90.8°F | 90.4°F | 90.4°F |
| Fort Lauderdale | 90.6°F | 88.8°F | 90.0°F |
| Galveston Island | 90.5°F | 90.4°F | 90.4°F |
| Galveston | 90.5°F | 90.5°F | 90.4°F |
| Hilton Head Island | 90.4°F | 89.7°F | 90.0°F |
| Dauphin Island | 90.4°F | 91.3°F | 91.1°F |
| Edisto Beach | 90.4°F | 89.2°F | 89.6°F |
| St. George Island | 90.3°F | 90.4°F | 91.0°F |
| Tybee Island | 90.3°F | 89.3°F | 89.8°F |
| Wilmington Island | 90.3°F | 89.1°F | 89.7°F |
| Pensacola | 90.1°F | 90.9°F | 91.4°F |
| Jekyll Island | 90.1°F | 88.4°F | 89.2°F |
| Orange Beach | 90.1°F | 90.8°F | 90.8°F |
| West Palm Beach | 90.1°F | 88.5°F | 89.6°F |
| Kiawah Island | 90.0°F | 88.7°F | 89.1°F |
| Mobile | 90.0°F | 89.7°F | 90.7°F |
| St. Simons Island | 90.0°F | 88.3°F | 89.2°F |
| Miramar Beach | 90.0°F | 90.3°F | 90.7°F |
| Panama City Beach | 89.9°F | 90.4°F | 90.9°F |
| Santa Rosa Beach | 89.9°F | 90.2°F | 90.7°F |
| Pensacola Beach | 89.8°F | 90.8°F | 91.2°F |
| Gulf Shores | 89.8°F | 90.9°F | 90.9°F |
| Destin | 89.8°F | 90.3°F | 90.7°F |
| Charleston | 89.8°F | 88.5°F | 89.2°F |
| Folly Beach | 89.8°F | 88.5°F | 89.1°F |
| Mount Pleasant | 89.5°F | 88.3°F | 89.0°F |
| Fort Walton Beach | 89.5°F | 90.1°F | 90.4°F |
| Isle of Palms | 89.4°F | 88.1°F | 88.9°F |
| Corpus Christi | 89.3°F | 89.2°F | 90.6°F |
| Port St. Lucie | 89.1°F | 85.8°F | 88.6°F |
| Amelia Island | 88.8°F | 84.7°F | 87.3°F |
| Bald Head Island | 88.7°F | 87.6°F | 88.2°F |
| Oak Island | 88.6°F | 87.5°F | 88.3°F |
| North Myrtle Beach | 88.5°F | 86.4°F | 88.2°F |
| Arcadian Shores | 88.5°F | 85.8°F | 88.1°F |
| Murrells Inlet | 88.5°F | 85.2°F | 87.6°F |
| Myrtle Beach | 88.4°F | 85.4°F | 87.8°F |
| Port Aransas | 88.4°F | 88.3°F | 89.9°F |
| Jacksonville | 88.3°F | 83.8°F | 87.2°F |
| Mustang Island | 88.3°F | 88.0°F | 89.8°F |
| Cocoa Beach | 88.1°F | 87.6°F | 88.9°F |
| Pawleys Island | 87.9°F | 85.2°F | 87.5°F |
| St. Augustine | 87.8°F | 84.4°F | 86.8°F |
| Washington | 87.2°F | 88.6°F | 87.7°F |
| Carolina Beach | 87.1°F | 85.3°F | 86.7°F |
| North Topsail Beach | 87.0°F | 84.7°F | 85.8°F |
| Wilmington | 86.7°F | 83.8°F | 85.8°F |
| Wrightsville Beach | 86.6°F | 83.4°F | 85.4°F |
| Orlando | 86.3°F | 84.7°F | 86.8°F |
| South Padre Island | 86.3°F | 86.1°F | 89.4°F |
| Daytona Beach | 86.1°F | 83.8°F | 86.3°F |
| Saint Michaels | 86.1°F | 88.6°F | 87.0°F |
| Tangier Island | 85.1°F | 87.7°F | 85.6°F |
| Chesapeake | 85.1°F | 87.8°F | 84.3°F |
| Annapolis | 85.0°F | 87.3°F | 86.1°F |
| Baltimore | 84.7°F | 86.2°F | 85.2°F |
| Outer Banks | 84.7°F | 86.0°F | 83.7°F |
| Hatteras Island | 84.6°F | 85.5°F | 83.9°F |
| Norfolk | 84.4°F | 87.1°F | 83.5°F |
| Kailua Kona | 84.4°F | 83.3°F | 83.1°F |
| Nags Head | 83.8°F | 85.1°F | 82.1°F |
| Kill Devil Hills | 83.6°F | 85.1°F | 82.3°F |
| Hilo | 83.5°F | 82.6°F | 82.1°F |
| Kihei | 83.5°F | 82.9°F | 82.1°F |
| New Castle | 83.4°F | 84.6°F | 85.8°F |
| Corolla | 83.4°F | 84.9°F | 82.7°F |
| Lanai | 83.3°F | 83.6°F | 82.6°F |
| Honolulu | 83.2°F | 82.8°F | 82.4°F |
| Wilmington | 83.1°F | 84.1°F | 85.6°F |
| Hawaii | 83.0°F | 82.7°F | 82.4°F |
| Port Clinton | 82.9°F | 84.1°F | 80.4°F |
| Molokai | 82.8°F | 82.4°F | 82.1°F |
| Kahului | 82.7°F | 82.2°F | 81.8°F |
| Chincoteague | 82.6°F | 83.6°F | 79.0°F |
| Sandusky | 82.4°F | 83.0°F | 79.7°F |
| Toledo | 82.4°F | 83.6°F | 80.5°F |
| Kauai | 82.3°F | 79.0°F | 81.2°F |
| Maui | 82.3°F | 82.0°F | 81.6°F |
| Princeville | 82.3°F | 79.2°F | 81.1°F |
| Oahu | 82.0°F | 81.1°F | 81.2°F |
| Put in Bay | 81.7°F | 81.9°F | 79.5°F |
| Virginia Beach | 81.3°F | 83.5°F | 79.6°F |
| Appleton | 80.9°F | 79.8°F | 77.0°F |
| Oshkosh | 80.6°F | 80.2°F | 77.1°F |
| Ocean City | 80.1°F | 82.3°F | 79.0°F |
| Green Bay | 80.0°F | 78.7°F | 76.5°F |
| Cleveland | 79.8°F | 82.5°F | 78.1°F |
| Lewes | 79.0°F | 81.0°F | 78.7°F |
| Dewey Beach | 79.0°F | 80.7°F | 77.5°F |
| Brigantine | 78.7°F | 81.0°F | 77.6°F |
| Long Beach Island | 78.6°F | 80.7°F | 78.7°F |
| Beach Haven | 78.5°F | 81.0°F | 78.6°F |
| Rehoboth Beach | 78.5°F | 80.4°F | 77.7°F |
| Erie | 78.5°F | 79.8°F | 77.2°F |
| Atlantic City | 78.2°F | 80.3°F | 76.8°F |
| Ocean City | 77.9°F | 80.1°F | 76.4°F |
| Sea Isle City | 77.7°F | 79.2°F | 75.2°F |
| Seaside Heights | 77.7°F | 80.0°F | 79.0°F |
| Fenwick Island | 77.7°F | 79.9°F | 73.3°F |
| Bristol | 77.4°F | 78.1°F | 77.8°F |
| Fire Island | 77.3°F | 78.5°F | 78.2°F |
| Michigan City | 77.3°F | 79.3°F | 73.7°F |
| Wildwood Crest | 77.2°F | 80.0°F | 75.4°F |
| Wildwood | 77.2°F | 80.0°F | 75.4°F |
| Warwick | 77.1°F | 77.8°F | 77.4°F |
| Cape May | 77.0°F | 79.0°F | 74.7°F |
| Providence | 76.9°F | 77.5°F | 77.3°F |
| Buffalo | 76.8°F | 77.4°F | 76.1°F |
| Bethany Beach | 76.7°F | 78.4°F | 72.3°F |
| South Bethany | 76.7°F | 78.4°F | 72.3°F |
| Jersey City | 76.0°F | 78.3°F | 76.7°F |
| Newark | 76.0°F | 78.3°F | 76.6°F |
| New York | 75.9°F | 78.2°F | 76.6°F |
| New Bedford | 75.6°F | 75.4°F | 75.8°F |
| Chicago | 75.3°F | 75.8°F | 73.7°F |
| Hampton Bays | 75.3°F | 77.2°F | 76.3°F |
| Falmouth | 75.0°F | 74.5°F | 75.4°F |
| Yonkers | 74.9°F | 76.2°F | 74.7°F |
| Oak Park | 74.9°F | 75.7°F | 73.6°F |
| Evanston | 74.5°F | 75.5°F | 73.5°F |
| Dennis Port | 74.3°F | 72.6°F | 75.0°F |
| New Haven | 74.3°F | 75.2°F | 75.5°F |
| Niagara Falls | 74.0°F | 75.0°F | 73.8°F |
| Yosemite | 73.9°F | 70.4°F | 70.4°F |
| Newport | 73.8°F | 73.8°F | 73.5°F |
| Rochester | 73.7°F | 74.9°F | 75.0°F |
| Milford | 73.7°F | 75.1°F | 74.7°F |
| Stamford | 73.6°F | 75.7°F | 74.5°F |
| Jamestown | 73.5°F | 73.3°F | 73.3°F |
| Norwalk | 73.5°F | 75.2°F | 74.7°F |
| South Haven | 73.5°F | 77.7°F | 70.4°F |
| Saugatuck | 73.3°F | 76.9°F | 69.5°F |
| Santa Monica | 73.3°F | 69.7°F | 69.9°F |
| Beverly Hills | 73.2°F | 69.9°F | 70.0°F |
| Hollywood | 73.2°F | 69.9°F | 70.0°F |
| Holland | 73.2°F | 76.5°F | 69.7°F |
| Laguna Beach | 73.1°F | 69.5°F | 72.3°F |
| Los Angeles | 73.1°F | 69.4°F | 69.9°F |
| Traverse City | 72.7°F | 71.2°F | 71.3°F |
| Irvine | 72.6°F | 69.1°F | 71.5°F |
| Newport Beach | 72.5°F | 69.0°F | 70.7°F |
| Santa Ana | 72.4°F | 68.7°F | 69.7°F |
| San Diego | 72.3°F | 67.8°F | 70.0°F |
| Edgartown | 72.2°F | 71.5°F | 73.0°F |
| Sturgeon Bay | 72.1°F | 69.8°F | 69.5°F |
| Petoskey | 72.1°F | 69.5°F | 70.5°F |
| Chula Vista | 72.0°F | 67.3°F | 69.6°F |
| Harbor Springs | 71.8°F | 69.5°F | 70.4°F |
| Santa Catalina Island | 71.8°F | 70.0°F | 70.8°F |
| Malibu | 71.8°F | 66.5°F | 67.7°F |
| Nantucket | 71.7°F | 70.7°F | 72.9°F |
| Anaheim | 71.6°F | 67.0°F | 66.7°F |
| Westbrook | 71.5°F | 73.0°F | 72.8°F |
| Old Saybrook | 71.3°F | 72.8°F | 72.7°F |
| Fremont | 71.2°F | 69.6°F | 72.6°F |
| San Jose | 71.1°F | 69.5°F | 72.3°F |
| Charlevoix | 70.8°F | 68.3°F | 68.9°F |
| Martha's Vineyard | 70.7°F | 70.2°F | 72.2°F |
| Charlestown | 70.6°F | 71.3°F | 70.9°F |
| Long Beach | 70.4°F | 65.3°F | 64.6°F |
| New London | 70.4°F | 72.2°F | 70.6°F |
| Groton | 70.2°F | 72.1°F | 70.5°F |
| Chatham | 70.0°F | 68.7°F | 71.5°F |
| Siasconset | 69.7°F | 68.9°F | 70.7°F |
| Stonington | 69.5°F | 71.0°F | 70.3°F |
| Mystic | 69.5°F | 71.0°F | 70.3°F |
| Oxnard | 69.4°F | 65.2°F | 64.2°F |
| Cambridge | 69.3°F | 69.2°F | 67.8°F |
| Santa Barbara | 69.3°F | 65.2°F | 65.0°F |
| Montauk | 69.3°F | 71.0°F | 70.4°F |
| Westerly | 69.3°F | 70.4°F | 69.9°F |
| Block Island | 69.2°F | 70.5°F | 70.6°F |
| New Shoreham | 69.2°F | 70.5°F | 70.6°F |
| Boston | 69.0°F | 69.0°F | 67.7°F |
| Plymouth | 68.9°F | 68.8°F | 69.9°F |
| South Lake Tahoe | 68.9°F | 68.4°F | 71.8°F |
| Milwaukee | 68.9°F | 70.7°F | 70.5°F |
| Provincetown | 68.8°F | 69.4°F | 67.4°F |
| Mackinac Island | 68.7°F | 67.6°F | 67.2°F |
| Incline Village | 68.6°F | 68.1°F | 71.2°F |
| Stateline | 68.4°F | 68.3°F | 71.6°F |
| Bayfield | 67.7°F | 64.5°F | 67.4°F |
| Portsmouth | 67.5°F | 64.5°F | 62.3°F |
| Lake Tahoe | 67.5°F | 67.3°F | 70.7°F |
| Hampton | 67.4°F | 65.4°F | 63.0°F |
| Hampton Beach | 67.4°F | 65.4°F | 63.0°F |
| Oakland | 66.9°F | 64.2°F | 67.0°F |
| Salem | 66.9°F | 66.9°F | 64.6°F |
| Freeport | 66.4°F | 66.3°F | 66.8°F |
| Duluth | 66.0°F | 64.9°F | 68.3°F |
| Astoria | 65.5°F | 66.4°F | 66.3°F |
| Brunswick | 65.3°F | 65.2°F | 66.9°F |
| Old Orchard Beach | 64.7°F | 65.0°F | 63.4°F |
| Sausalito | 64.6°F | 62.3°F | 63.8°F |
| San Francisco | 64.4°F | 62.1°F | 63.4°F |
| York Beach | 64.3°F | 64.6°F | 62.5°F |
| Ogunquit | 64.2°F | 64.6°F | 62.5°F |
| Kennebunkport | 64.1°F | 64.7°F | 62.5°F |
| Wells | 64.0°F | 64.6°F | 62.3°F |
| Camden | 63.8°F | 61.1°F | 64.5°F |
| Marquette | 63.6°F | 62.0°F | 64.2°F |
| Rockland | 61.6°F | 58.8°F | 61.6°F |
| Bellingham | 61.3°F | 61.7°F | 63.5°F |
| Santa Cruz | 60.7°F | 55.2°F | 58.4°F |
| Monterey | 59.4°F | 57.8°F | 57.6°F |
| Tacoma | 59.4°F | 59.1°F | 60.1°F |
| Whidbey Island | 59.1°F | 59.2°F | 60.5°F |
| Mount Desert Island | 59.0°F | 59.1°F | 62.0°F |
| Ketchikan | 59.0°F | 58.3°F | 58.8°F |
| Bar Harbor | 58.4°F | 58.2°F | 61.4°F |
| Bellevue | 58.3°F | 58.4°F | 59.3°F |
| Ocean Shores | 57.7°F | 54.0°F | 55.6°F |
| Seaside | 57.1°F | 53.7°F | 53.7°F |
| Cannon Beach | 56.9°F | 53.1°F | 53.7°F |
| Anchorage | 56.2°F | 57.2°F | 57.5°F |
| Juneau | 54.7°F | 54.7°F | 56.5°F |
| Rockaway Beach | 54.3°F | 51.5°F | 52.9°F |
| Sitka | 54.1°F | 55.4°F | 55.1°F |
| Pacific City | 53.9°F | 51.0°F | 51.1°F |
| Girdwood | 53.9°F | 55.4°F | 53.8°F |
| Haines | 53.3°F | 54.0°F | 54.8°F |
| Valdez | 53.1°F | 55.9°F | 57.6°F |
| Wasilla | 53.0°F | 53.9°F | 53.5°F |
| Kenai | 53.0°F | 55.2°F | 53.9°F |
| Newport | 52.9°F | 51.5°F | 50.1°F |
| Seward | 52.7°F | 55.1°F | 54.2°F |
| Florence | 52.6°F | 49.5°F | 49.5°F |
| Lincoln City | 52.3°F | 50.1°F | 50.4°F |
| Port Angeles | 51.8°F | 52.2°F | 52.6°F |
| Depoe Bay | 51.6°F | 50.4°F | 50.7°F |
| Homer | 51.5°F | 53.4°F | 52.4°F |
| Grand Marais | 41.7°F | 54.0°F | 57.9°F |
| Kissimmee | 30.0°F | 30.0°F | 30.0°F |
| Lake Geneva | 30.0°F | 30.0°F | 30.0°F |
Please see following sea water temperature averages charts for the warmest USA resorts in July.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
USA Resorts:
NAME
F°
| Boston |  |
+94 |
| Chicago | |
+82 |
| Hawaii |  |
+82 |
| Houston | |
+102 |
| Las Vegas | |
+124 |
| Los Angeles | |
+92 |
| Maui | |
+78 |
| Miami | |
+92 |
| Myrtle Beach |  |
+84 |
| New York | |
+84 |
| San Diego | |
+80 |
| San Francisco | |
+62 |
| Santa Monica | |
+80 |
| Sarasota | |
+92 |
| Washington | |
+88 |
