The USA resorts with the warmest sea water temperature in April are Everglades, Islamorada and Key Largo.
Below you can see a list of all popular USA resorts and information about sea water temperature in April for the last two years.
| Resort Name | April 2026 | April 2025 | April 2024 |
|---|---|---|---|
| Everglades | 81.8°F | 82.0°F | 81.1°F |
| Islamorada | 81.6°F | 81.6°F | 80.6°F |
| Key Largo | 81.4°F | 81.6°F | 80.4°F |
| West Palm Beach | 81.4°F | 81.5°F | 80.6°F |
| Key West | 81.4°F | 81.1°F | 80.7°F |
| Fort Lauderdale | 81.2°F | 81.1°F | 79.9°F |
| Miami Beach | 81.2°F | 81.4°F | 80.1°F |
| Hialeah | 80.8°F | 81.0°F | 79.7°F |
| Kailua Kona | 80.7°F | 81.3°F | 79.9°F |
| Miami | 80.6°F | 81.0°F | 79.8°F |
| Hilo | 80.0°F | 80.2°F | 78.3°F |
| Kihei | 79.7°F | 80.5°F | 78.7°F |
| Honolulu | 79.4°F | 80.4°F | 79.2°F |
| Cape Coral | 79.4°F | 80.2°F | 79.3°F |
| Port St. Lucie | 79.3°F | 77.7°F | 77.0°F |
| Lanai | 79.3°F | 80.9°F | 79.3°F |
| Marco Island | 79.2°F | 80.3°F | 79.5°F |
| Hawaii | 79.2°F | 80.3°F | 79.0°F |
| Molokai | 79.2°F | 80.2°F | 78.6°F |
| Kahului | 79.1°F | 79.8°F | 78.4°F |
| Maui | 78.8°F | 79.5°F | 78.2°F |
| Kauai | 78.8°F | 77.6°F | 77.9°F |
| Sanibel Island | 78.8°F | 79.7°F | 78.6°F |
| Princeville | 78.7°F | 77.7°F | 77.9°F |
| Naples | 78.7°F | 80.0°F | 79.2°F |
| South Padre Island | 78.6°F | 77.2°F | 75.8°F |
| Avery Island | 78.2°F | 76.3°F | 75.1°F |
| Port Aransas | 78.1°F | 76.3°F | 75.5°F |
| Tampa | 78.1°F | 79.6°F | 76.8°F |
| St. Petersburg | 78.0°F | 79.2°F | 76.9°F |
| Cocoa Beach | 77.8°F | 77.8°F | 76.6°F |
| Galveston Island | 77.8°F | 77.1°F | 74.8°F |
| Corpus Christi | 77.8°F | 77.4°F | 76.9°F |
| Mustang Island | 77.7°F | 76.0°F | 75.4°F |
| Oahu | 77.7°F | 79.4°F | 77.8°F |
| Clearwater Beach | 77.4°F | 78.4°F | 76.1°F |
| Galveston | 77.4°F | 76.5°F | 74.5°F |
| Houston | 77.2°F | 76.4°F | 74.0°F |
| Grand Isle | 77.2°F | 78.0°F | 75.1°F |
| Sarasota | 76.9°F | 78.9°F | 77.0°F |
| Gulfport | 76.6°F | 75.6°F | 73.1°F |
| Siesta Key | 76.5°F | 78.6°F | 77.0°F |
| Ocean Springs | 76.5°F | 75.9°F | 72.8°F |
| Bay Saint Louis | 76.4°F | 75.9°F | 73.1°F |
| Biloxi | 76.3°F | 75.8°F | 72.8°F |
| Pass Christian | 76.2°F | 75.9°F | 73.2°F |
| Long Beach | 76.2°F | 75.9°F | 73.3°F |
| Mobile | 75.7°F | 72.8°F | 70.9°F |
| Pensacola | 75.6°F | 75.2°F | 73.3°F |
| Dauphin Island | 75.4°F | 75.5°F | 72.4°F |
| New Orleans | 75.1°F | 74.6°F | 72.7°F |
| Orlando | 74.8°F | 75.3°F | 73.2°F |
| St. George Island | 74.8°F | 75.3°F | 72.6°F |
| Orange Beach | 74.7°F | 75.3°F | 72.4°F |
| Gulf Shores | 74.5°F | 75.5°F | 72.2°F |
| Pensacola Beach | 74.1°F | 74.9°F | 72.3°F |
| Daytona Beach | 74.1°F | 75.2°F | 72.5°F |
| Santa Rosa Beach | 73.8°F | 74.2°F | 71.4°F |
| Miramar Beach | 73.7°F | 74.3°F | 71.6°F |
| Destin | 73.6°F | 74.4°F | 71.5°F |
| Panama City Beach | 73.6°F | 74.4°F | 71.9°F |
| Fort Walton Beach | 73.4°F | 74.2°F | 71.3°F |
| Jekyll Island | 71.7°F | 74.4°F | 70.5°F |
| St. Augustine | 71.3°F | 74.8°F | 71.3°F |
| St. Simons Island | 71.2°F | 73.9°F | 70.2°F |
| Wilmington Island | 70.7°F | 71.8°F | 68.8°F |
| Hilton Head Island | 70.6°F | 71.6°F | 68.9°F |
| Tybee Island | 70.4°F | 71.6°F | 68.6°F |
| Amelia Island | 70.0°F | 73.5°F | 70.1°F |
| Edisto Beach | 69.9°F | 71.8°F | 68.7°F |
| Jacksonville | 69.8°F | 73.6°F | 69.9°F |
| Charleston | 69.5°F | 71.0°F | 68.3°F |
| Mount Pleasant | 69.3°F | 70.8°F | 68.5°F |
| Folly Beach | 69.2°F | 70.8°F | 68.0°F |
| Kiawah Island | 69.1°F | 71.2°F | 68.1°F |
| Isle of Palms | 69.1°F | 70.7°F | 68.3°F |
| Bald Head Island | 67.5°F | 68.2°F | 66.6°F |
| Pawleys Island | 67.4°F | 68.3°F | 66.8°F |
| Oak Island | 67.2°F | 68.3°F | 66.3°F |
| Murrells Inlet | 67.1°F | 68.4°F | 66.7°F |
| Carolina Beach | 67.1°F | 67.1°F | 65.1°F |
| North Myrtle Beach | 67.0°F | 68.4°F | 66.1°F |
| Myrtle Beach | 66.9°F | 68.1°F | 66.4°F |
| Hatteras Island | 66.9°F | 66.5°F | 59.5°F |
| Arcadian Shores | 66.9°F | 68.4°F | 66.2°F |
| San Diego | 66.8°F | 59.8°F | 61.9°F |
| Laguna Beach | 66.6°F | 59.4°F | 60.3°F |
| Irvine | 66.3°F | 59.1°F | 60.2°F |
| Newport Beach | 66.1°F | 59.0°F | 60.1°F |
| North Topsail Beach | 66.1°F | 65.3°F | 64.1°F |
| Chula Vista | 66.0°F | 59.5°F | 61.5°F |
| Wilmington | 66.0°F | 65.9°F | 64.7°F |
| Wrightsville Beach | 65.9°F | 65.4°F | 64.2°F |
| Santa Ana | 65.7°F | 59.0°F | 60.2°F |
| Santa Catalina Island | 65.4°F | 60.4°F | 59.9°F |
| Beverly Hills | 65.3°F | 59.3°F | 59.4°F |
| Hollywood | 65.3°F | 59.3°F | 59.4°F |
| Anaheim | 65.2°F | 58.9°F | 59.8°F |
| Santa Monica | 65.2°F | 59.3°F | 59.4°F |
| Los Angeles | 65.0°F | 59.0°F | 59.2°F |
| Washington | 65.0°F | 61.3°F | 58.2°F |
| Long Beach | 64.5°F | 58.4°F | 58.9°F |
| Chesapeake | 64.3°F | 60.8°F | 59.4°F |
| Malibu | 63.6°F | 57.7°F | 58.2°F |
| Fremont | 63.1°F | 60.9°F | 61.6°F |
| San Jose | 63.0°F | 60.7°F | 61.4°F |
| Norfolk | 62.9°F | 60.6°F | 58.6°F |
| Oxnard | 62.8°F | 55.9°F | 58.1°F |
| Santa Barbara | 62.5°F | 56.2°F | 57.1°F |
| Oakland | 62.1°F | 59.6°F | 59.1°F |
| Outer Banks | 61.9°F | 63.6°F | 58.1°F |
| San Francisco | 60.6°F | 57.1°F | 57.6°F |
| Sausalito | 60.6°F | 57.3°F | 57.8°F |
| Saint Michaels | 60.2°F | 57.0°F | 56.2°F |
| Tangier Island | 59.2°F | 57.2°F | 56.3°F |
| Kill Devil Hills | 59.0°F | 60.0°F | 57.9°F |
| Monterey | 58.7°F | 55.8°F | 56.1°F |
| Nags Head | 58.7°F | 60.2°F | 57.5°F |
| Baltimore | 58.6°F | 53.5°F | 55.0°F |
| Santa Cruz | 58.2°F | 55.2°F | 55.5°F |
| Virginia Beach | 58.0°F | 57.7°F | 55.7°F |
| Annapolis | 57.1°F | 55.7°F | 55.3°F |
| New Castle | 56.8°F | 53.7°F | 52.6°F |
| Corolla | 56.3°F | 59.2°F | 56.0°F |
| Wilmington | 56.3°F | 53.3°F | 52.4°F |
| Chincoteague | 55.5°F | 54.0°F | 52.9°F |
| Rockaway Beach | 52.4°F | 51.5°F | 51.9°F |
| Seaside | 52.3°F | 51.4°F | 51.9°F |
| Newport | 52.3°F | 50.6°F | 51.5°F |
| Florence | 52.3°F | 50.4°F | 51.3°F |
| Cannon Beach | 52.2°F | 51.3°F | 51.9°F |
| Fenwick Island | 52.2°F | 51.9°F | 51.3°F |
| Lewes | 52.0°F | 51.3°F | 51.6°F |
| Astoria | 51.9°F | 51.3°F | 51.9°F |
| Depoe Bay | 51.8°F | 50.4°F | 51.4°F |
| Ocean City | 51.8°F | 51.0°F | 51.2°F |
| Ocean Shores | 51.8°F | 51.4°F | 52.2°F |
| Lincoln City | 51.8°F | 50.4°F | 51.5°F |
| Dewey Beach | 51.6°F | 51.4°F | 51.4°F |
| Bethany Beach | 51.5°F | 51.9°F | 51.5°F |
| South Bethany | 51.5°F | 51.9°F | 51.5°F |
| Pacific City | 51.5°F | 50.8°F | 51.9°F |
| Rehoboth Beach | 51.4°F | 50.9°F | 51.1°F |
| Cape May | 50.7°F | 50.3°F | 50.3°F |
| Whidbey Island | 50.6°F | 50.1°F | 50.2°F |
| Brigantine | 50.6°F | 50.1°F | 50.4°F |
| Wildwood Crest | 50.3°F | 49.7°F | 49.7°F |
| Wildwood | 50.3°F | 49.7°F | 49.7°F |
| Ocean City | 50.3°F | 49.0°F | 49.9°F |
| Tacoma | 50.2°F | 49.3°F | 49.0°F |
| Bellevue | 50.1°F | 50.0°F | 49.3°F |
| Atlantic City | 49.9°F | 49.4°F | 49.7°F |
| Toledo | 49.8°F | 48.4°F | 49.5°F |
| Bellingham | 49.8°F | 49.9°F | 49.2°F |
| Sea Isle City | 49.6°F | 48.7°F | 49.4°F |
| Beach Haven | 48.9°F | 48.5°F | 49.7°F |
| Port Clinton | 48.8°F | 46.5°F | 47.8°F |
| Newark | 48.3°F | 47.3°F | 48.2°F |
| Sandusky | 48.3°F | 45.7°F | 47.8°F |
| Incline Village | 48.3°F | 46.3°F | 43.4°F |
| Jersey City | 48.3°F | 47.3°F | 48.0°F |
| New York | 48.2°F | 47.2°F | 48.0°F |
| Port Angeles | 48.1°F | 48.1°F | 48.3°F |
| Long Beach Island | 48.0°F | 47.7°F | 49.1°F |
| Lake Tahoe | 47.8°F | 46.8°F | 43.0°F |
| Stateline | 47.8°F | 46.9°F | 43.2°F |
| South Lake Tahoe | 47.7°F | 46.9°F | 43.2°F |
| Warwick | 47.1°F | 46.8°F | 47.2°F |
| Providence | 47.0°F | 46.8°F | 46.9°F |
| Bristol | 47.0°F | 46.7°F | 47.0°F |
| Yonkers | 47.0°F | 46.1°F | 47.1°F |
| Seaside Heights | 46.6°F | 46.4°F | 48.4°F |
| Put in Bay | 46.2°F | 45.5°F | 46.4°F |
| New Bedford | 45.6°F | 45.3°F | 45.9°F |
| Edgartown | 45.4°F | 45.2°F | 45.0°F |
| Dennis Port | 45.3°F | 44.3°F | 45.1°F |
| Yosemite | 45.2°F | 45.1°F | 45.2°F |
| Oshkosh | 45.0°F | 44.2°F | 45.5°F |
| Falmouth | 45.0°F | 45.0°F | 45.4°F |
| Martha's Vineyard | 45.0°F | 44.5°F | 44.6°F |
| Nantucket | 44.9°F | 44.6°F | 44.8°F |
| Stamford | 44.8°F | 44.2°F | 46.0°F |
| Fire Island | 44.8°F | 45.8°F | 46.8°F |
| New Haven | 44.5°F | 44.8°F | 46.0°F |
| Newport | 44.5°F | 44.8°F | 46.3°F |
| Jamestown | 44.5°F | 44.8°F | 46.9°F |
| Cambridge | 44.3°F | 43.4°F | 44.0°F |
| Hampton Bays | 44.2°F | 45.7°F | 46.3°F |
| Boston | 44.1°F | 43.4°F | 44.0°F |
| Norwalk | 44.0°F | 43.7°F | 45.7°F |
| Plymouth | 43.9°F | 43.6°F | 43.7°F |
| Milford | 43.9°F | 43.8°F | 45.5°F |
| Ketchikan | 43.9°F | 44.6°F | 45.3°F |
| Appleton | 43.8°F | 43.0°F | 44.3°F |
| Cleveland | 43.6°F | 42.8°F | 45.5°F |
| Siasconset | 43.5°F | 43.7°F | 43.7°F |
| Michigan City | 43.3°F | 43.4°F | 44.4°F |
| Evanston | 43.3°F | 43.8°F | 44.3°F |
| Chicago | 43.2°F | 43.2°F | 44.0°F |
| Oak Park | 43.0°F | 43.3°F | 44.0°F |
| South Haven | 42.8°F | 40.5°F | 43.0°F |
| Old Saybrook | 42.7°F | 43.2°F | 44.9°F |
| Chatham | 42.6°F | 42.4°F | 43.4°F |
| New London | 42.5°F | 44.0°F | 44.7°F |
| Groton | 42.5°F | 44.0°F | 44.7°F |
| Salem | 42.5°F | 42.0°F | 42.7°F |
| Westbrook | 42.5°F | 43.2°F | 44.8°F |
| Montauk | 42.3°F | 43.8°F | 44.6°F |
| Stonington | 42.2°F | 43.6°F | 44.2°F |
| Mystic | 42.2°F | 43.6°F | 44.2°F |
| Charlestown | 42.2°F | 43.5°F | 44.3°F |
| Westerly | 41.8°F | 43.4°F | 44.1°F |
| Hampton | 41.8°F | 40.7°F | 42.4°F |
| Hampton Beach | 41.8°F | 40.7°F | 42.4°F |
| Freeport | 41.7°F | 40.7°F | 42.9°F |
| Sitka | 41.7°F | 43.4°F | 43.6°F |
| Block Island | 41.6°F | 43.3°F | 43.8°F |
| New Shoreham | 41.6°F | 43.3°F | 43.8°F |
| York Beach | 41.6°F | 40.2°F | 42.0°F |
| Portsmouth | 41.6°F | 40.4°F | 41.9°F |
| Ogunquit | 41.5°F | 40.1°F | 41.9°F |
| Provincetown | 41.4°F | 41.4°F | 42.9°F |
| Old Orchard Beach | 41.4°F | 40.0°F | 42.0°F |
| Brunswick | 41.4°F | 40.2°F | 42.6°F |
| Wells | 41.3°F | 40.0°F | 41.8°F |
| Kennebunkport | 41.2°F | 40.0°F | 41.9°F |
| Saugatuck | 41.2°F | 38.8°F | 42.8°F |
| Holland | 41.0°F | 37.7°F | 42.4°F |
| Erie | 40.9°F | 39.3°F | 42.8°F |
| Camden | 39.5°F | 38.7°F | 41.5°F |
| Rockland | 39.4°F | 38.8°F | 41.0°F |
| Milwaukee | 39.4°F | 40.2°F | 40.8°F |
| Niagara Falls | 39.2°F | 36.4°F | 38.7°F |
| Green Bay | 38.9°F | 42.0°F | 42.6°F |
| Mount Desert Island | 38.7°F | 37.6°F | 40.4°F |
| Bar Harbor | 38.7°F | 37.6°F | 40.3°F |
| Valdez | 38.6°F | 40.6°F | 40.2°F |
| Juneau | 37.9°F | 39.7°F | 41.2°F |
| Seward | 37.5°F | 40.0°F | 39.0°F |
| Buffalo | 37.5°F | 36.3°F | 40.7°F |
| Haines | 36.8°F | 39.1°F | 40.8°F |
| Rochester | 36.5°F | 37.6°F | 40.9°F |
| Homer | 36.2°F | 40.4°F | 38.6°F |
| Sturgeon Bay | 35.7°F | 37.4°F | 38.4°F |
| Traverse City | 34.9°F | 34.4°F | 37.3°F |
| Girdwood | 34.0°F | 36.8°F | 35.5°F |
| Bayfield | 33.3°F | 33.8°F | 35.3°F |
| Duluth | 33.0°F | 33.9°F | 39.9°F |
| Wasilla | 32.9°F | 34.1°F | 33.3°F |
| Charlevoix | 32.5°F | 32.6°F | 35.8°F |
| Mackinac Island | 32.5°F | 33.4°F | 35.9°F |
| Marquette | 32.5°F | 33.3°F | 35.0°F |
| Kenai | 32.4°F | 35.4°F | 33.1°F |
| Anchorage | 32.4°F | 34.9°F | 32.7°F |
| Petoskey | 32.4°F | 32.2°F | 34.8°F |
| Harbor Springs | 32.4°F | 32.2°F | 34.8°F |
| Grand Marais | 31.2°F | 32.4°F | 33.8°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 April.
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 |  |
+62 |
| Chicago |  |
+52 |
| Hawaii |  |
+76 |
| Honolulu | |
+76 |
| Houston | |
+78 |
| Las Vegas | |
+88 |
| Los Angeles |  |
+66 |
| Maui | |
+70 |
| Miami | |
+94 |
| Miami Beach | |
+90 |
| New York | |
+68 |
| San Diego | |
+66 |
| San Francisco | |
+62 |
| Sarasota | |
+94 |
| Tampa | |
+94 |
