In August warmest sea in USA is usually observed in the following locations: Key West, Key Largo, Naples.
Table below shows the average sea water temperature for marine resorts of USA in August for the last three years.
| Place name | August 2026 | August 2025 | August 2024 |
|---|---|---|---|
| Key West | 88.8°F | 88.8°F | 87.8°F |
| Key Largo | 88.4°F | 88.7°F | 87.3°F |
| Naples | 88.1°F | 88.7°F | 87.0°F |
| New Orleans | 88.0°F | 87.4°F | 88.1°F |
| Houston | 87.8°F | 87.8°F | 88.0°F |
| Cape Coral | 87.6°F | 88.7°F | 86.8°F |
| Miami | 87.3°F | 88.1°F | 86.4°F |
| Galveston | 87.3°F | 87.9°F | 88.3°F |
| Miami Beach | 87.1°F | 87.9°F | 86.5°F |
| Sarasota | 87.1°F | 88.6°F | 87.2°F |
| Siesta Key | 87.1°F | 88.6°F | 87.3°F |
| Pensacola | 86.9°F | 86.5°F | 87.2°F |
| Clearwater Beach | 86.8°F | 88.5°F | 87.0°F |
| Tampa | 86.8°F | 88.6°F | 86.4°F |
| Fort Lauderdale | 86.8°F | 87.2°F | 85.8°F |
| St. George Island | 86.7°F | 86.5°F | 86.8°F |
| Corpus Christi | 86.5°F | 87.0°F | 87.9°F |
| West Palm Beach | 86.4°F | 86.8°F | 86.2°F |
| Pensacola Beach | 86.4°F | 86.6°F | 87.4°F |
| Orange Beach | 86.3°F | 86.5°F | 87.3°F |
| Panama City Beach | 86.3°F | 86.2°F | 86.8°F |
| Hilton Head Island | 86.2°F | 85.0°F | 84.0°F |
| Santa Rosa Beach | 86.2°F | 85.9°F | 86.8°F |
| Tybee Island | 86.0°F | 84.5°F | 84.0°F |
| Destin | 86.0°F | 86.0°F | 86.9°F |
| Fort Walton Beach | 85.8°F | 86.0°F | 86.8°F |
| Kiawah Island | 85.7°F | 84.1°F | 83.6°F |
| Charleston (SC) | 85.4°F | 84.1°F | 83.1°F |
| Port St. Lucie | 85.3°F | 85.4°F | 84.5°F |
| St. Simons Island | 85.2°F | 85.7°F | 84.1°F |
| Jekyll Island | 85.2°F | 85.7°F | 84.1°F |
| Isle of Palms | 85.1°F | 83.8°F | 83.0°F |
| Bald Head Island | 84.9°F | 82.2°F | 82.5°F |
| South Padre Island | 84.2°F | 84.5°F | 86.5°F |
| North Myrtle Beach | 84.0°F | 83.2°F | 82.5°F |
| Cocoa Beach | 83.7°F | 86.8°F | 84.5°F |
| Myrtle Beach | 83.7°F | 83.1°F | 82.5°F |
| Carolina Beach | 83.0°F | 81.9°F | 81.6°F |
| Orlando | 82.9°F | 84.9°F | 83.4°F |
| Washington | 82.8°F | 81.4°F | 81.3°F |
| Amelia Island | 82.6°F | 85.1°F | 82.8°F |
| Outer Banks | 82.6°F | 80.1°F | 79.4°F |
| Wilmington (NC) | 82.4°F | 81.8°F | 81.3°F |
| Jacksonville | 82.2°F | 84.9°F | 82.9°F |
| St. Augustine | 82.1°F | 84.7°F | 82.9°F |
| Daytona Beach | 82.0°F | 84.6°F | 83.1°F |
| Kill Devil Hills | 82.0°F | 79.7°F | 78.4°F |
| Baltimore | 81.1°F | 80.2°F | 79.6°F |
| Honolulu | 81.0°F | 80.8°F | 79.9°F |
| Hawaii | 80.8°F | 80.6°F | 79.8°F |
| Kauai | 80.4°F | 79.1°F | 78.6°F |
| Oahu | 80.3°F | 79.5°F | 78.8°F |
| Maui | 79.6°F | 79.5°F | 79.1°F |
| Virginia Beach | 79.3°F | 78.4°F | 75.7°F |
| Ocean City (MD) | 77.9°F | 76.6°F | 74.9°F |
| Long Beach Island | 77.6°F | 75.8°F | 75.1°F |
| Dewey Beach | 77.3°F | 76.4°F | 74.3°F |
| Port Clinton | 77.2°F | 76.6°F | 76.6°F |
| Rehoboth Beach | 77.1°F | 76.4°F | 74.1°F |
| Atlantic City | 76.9°F | 75.8°F | 73.3°F |
| Cape May | 76.1°F | 75.7°F | 72.3°F |
| Sea Isle City | 76.1°F | 75.9°F | 72.4°F |
| Bethany Beach | 75.8°F | 75.3°F | 70.8°F |
| Jersey City | 75.3°F | 74.8°F | 74.7°F |
| New York | 75.3°F | 74.8°F | 74.6°F |
| New Bedford | 74.5°F | 72.6°F | 73.4°F |
| Laguna Beach | 74.3°F | 71.2°F | 70.7°F |
| Santa Catalina Island | 73.7°F | 69.7°F | 70.6°F |
| Irvine | 73.6°F | 70.6°F | 70.4°F |
| Michigan City | 73.5°F | 74.5°F | 74.5°F |
| Newport Beach | 73.3°F | 70.6°F | 70.3°F |
| Yosemite | 72.9°F | 69.3°F | 69.3°F |
| Los Angeles | 72.9°F | 70.3°F | 69.0°F |
| Santa Monica | 72.7°F | 70.5°F | 68.9°F |
| Hollywood | 72.7°F | 70.5°F | 68.9°F |
| Beverly Hills | 72.7°F | 70.5°F | 68.9°F |
| Chicago | 72.7°F | 73.8°F | 74.5°F |
| San Diego | 72.0°F | 68.9°F | 70.1°F |
| Malibu | 71.8°F | 69.1°F | 67.1°F |
| Niagara Falls | 71.5°F | 72.9°F | 71.7°F |
| Nantucket | 71.5°F | 69.7°F | 70.6°F |
| Milwaukee | 71.2°F | 71.2°F | 73.3°F |
| Santa Barbara | 70.9°F | 66.2°F | 64.9°F |
| Martha's Vineyard | 70.7°F | 69.0°F | 69.2°F |
| South Lake Tahoe | 70.1°F | 68.1°F | 67.8°F |
| San Jose | 70.0°F | 67.0°F | 67.5°F |
| Long Beach (CA) | 69.8°F | 69.1°F | 65.8°F |
| Holland | 69.6°F | 69.4°F | 70.9°F |
| Lake Tahoe | 69.3°F | 67.6°F | 67.3°F |
| Boston | 68.4°F | 67.2°F | 66.6°F |
| Hampton Beach | 67.6°F | 64.1°F | 64.9°F |
| Old Orchard Beach | 65.5°F | 64.1°F | 65.5°F |
| San Francisco | 64.4°F | 63.8°F | 62.4°F |
| Santa Cruz | 61.0°F | 59.2°F | 57.1°F |
| Tacoma | 60.3°F | 59.8°F | 58.7°F |
| Bellevue | 58.7°F | 58.3°F | 58.0°F |
| Monterey | 58.4°F | 59.7°F | 57.2°F |
| Anchorage | 56.4°F | 57.9°F | 55.4°F |
| Cannon Beach | 55.9°F | 57.2°F | 58.7°F |
| Florence | 53.2°F | 54.0°F | 55.5°F |
Charts below show average sea water temperature for USA resorts with the warmest sea in August.
You can also check other months of the year to see sea temperature of USA resorts at that time.
Places in USA:
Name
°F
