The USA resorts with the warmest sea water temperature in May are Key West, Key Largo and Everglades.
Below you can see a list of all popular USA resorts and information about sea water temperature in May for the last two years.
| Resort Name | May 2023 | May 2022 | May 2021 |
|---|---|---|---|
| Key West | 87.4°F | 86.7°F | 85.9°F |
| Key Largo | 87.1°F | 87.1°F | 85.9°F |
| Everglades | 87.0°F | 87.7°F | 87.0°F |
| Islamorada | 86.9°F | 86.7°F | 85.7°F |
| Marco Island | 86.1°F | 86.0°F | 85.5°F |
| Sanibel Island | 85.9°F | 85.7°F | 85.2°F |
| Naples | 85.8°F | 85.6°F | 85.4°F |
| Cape Coral | 85.7°F | 85.6°F | 85.3°F |
| Miami | 85.3°F | 86.1°F | 85.4°F |
| Miami Beach | 85.1°F | 85.5°F | 84.9°F |
| Hialeah | 85.0°F | 85.8°F | 85.1°F |
| Sarasota | 84.3°F | 84.5°F | 83.9°F |
| Fort Lauderdale | 84.3°F | 84.2°F | 84.0°F |
| Siesta Key | 84.0°F | 84.1°F | 83.7°F |
| West Palm Beach | 84.0°F | 83.8°F | 83.7°F |
| Grand Isle | 83.8°F | 85.1°F | 81.4°F |
| St. Petersburg | 83.8°F | 84.5°F | 83.4°F |
| Tampa | 83.7°F | 84.8°F | 83.8°F |
| Clearwater Beach | 83.6°F | 84.2°F | 83.1°F |
| Corpus Christi | 83.2°F | 84.5°F | 82.3°F |
| Port St. Lucie | 82.7°F | 82.2°F | 82.1°F |
| Port Aransas | 82.4°F | 83.3°F | 80.9°F |
| Mustang Island | 82.3°F | 83.3°F | 81.0°F |
| Avery Island | 82.3°F | 84.9°F | 80.5°F |
| New Orleans | 82.3°F | 84.2°F | 79.4°F |
| South Padre Island | 82.0°F | 81.2°F | 80.8°F |
| Cocoa Beach | 81.9°F | 80.7°F | 81.8°F |
| Galveston Island | 81.8°F | 83.8°F | 80.4°F |
| Kailua Kona | 81.8°F | 80.9°F | 81.0°F |
| Galveston | 81.5°F | 83.5°F | 80.1°F |
| Pass Christian | 81.5°F | 83.9°F | 78.9°F |
| Bay Saint Louis | 81.4°F | 83.9°F | 78.8°F |
| Long Beach | 81.4°F | 83.8°F | 78.9°F |
| Gulfport | 81.3°F | 83.7°F | 78.8°F |
| Ocean Springs | 81.2°F | 83.8°F | 79.1°F |
| Biloxi | 81.2°F | 83.9°F | 79.0°F |
| Molokai | 80.9°F | 80.9°F | 80.7°F |
| Kihei | 80.8°F | 80.1°F | 80.3°F |
| Lanai | 80.7°F | 80.1°F | 80.3°F |
| Houston | 80.5°F | 84.1°F | 80.7°F |
| Orlando | 80.5°F | 79.9°F | 78.9°F |
| Dauphin Island | 80.5°F | 82.7°F | 78.5°F |
| St. George Island | 80.5°F | 81.8°F | 79.4°F |
| Kissimmee | 80.4°F | 79.7°F | 79.0°F |
| Panama City Beach | 80.4°F | 82.0°F | 79.4°F |
| Princeville | 80.4°F | 80.5°F | 79.9°F |
| Kauai | 80.3°F | 80.5°F | 79.9°F |
| Honolulu | 80.3°F | 80.5°F | 80.3°F |
| Daytona Beach | 80.1°F | 79.7°F | 78.3°F |
| Hawaii | 80.0°F | 80.2°F | 80.1°F |
| Pensacola | 80.0°F | 82.4°F | 78.5°F |
| Orange Beach | 79.9°F | 81.9°F | 78.3°F |
| Mobile | 79.8°F | 81.2°F | 77.6°F |
| Gulf Shores | 79.8°F | 81.7°F | 78.2°F |
| Hilo | 79.8°F | 80.0°F | 79.9°F |
| Kahului | 79.7°F | 79.5°F | 79.6°F |
| Pensacola Beach | 79.6°F | 81.9°F | 78.2°F |
| Oahu | 79.6°F | 79.8°F | 80.1°F |
| Santa Rosa Beach | 79.3°F | 81.5°F | 78.6°F |
| Miramar Beach | 79.3°F | 81.4°F | 78.7°F |
| Maui | 79.3°F | 79.1°F | 79.3°F |
| Destin | 79.2°F | 81.1°F | 78.5°F |
| Fort Walton Beach | 79.2°F | 80.7°F | 78.1°F |
| St. Augustine | 78.8°F | 79.4°F | 76.8°F |
| Jekyll Island | 78.3°F | 79.6°F | 77.5°F |
| St. Simons Island | 78.0°F | 79.5°F | 77.5°F |
| Jacksonville | 77.8°F | 79.0°F | 76.1°F |
| Amelia Island | 77.8°F | 79.1°F | 76.3°F |
| Wilmington Island | 76.7°F | 79.0°F | 76.7°F |
| Hilton Head Island | 76.7°F | 79.1°F | 76.9°F |
| Tybee Island | 76.3°F | 78.5°F | 76.2°F |
| Edisto Beach | 75.6°F | 78.6°F | 76.5°F |
| Kiawah Island | 75.2°F | 78.0°F | 75.9°F |
| Mount Pleasant | 75.2°F | 77.9°F | 76.2°F |
| Isle of Palms | 75.2°F | 77.4°F | 75.8°F |
| Charleston | 75.1°F | 78.1°F | 76.1°F |
| Folly Beach | 75.1°F | 77.7°F | 75.8°F |
| Murrells Inlet | 74.1°F | 76.1°F | 74.4°F |
| Pawleys Island | 73.9°F | 75.8°F | 74.3°F |
| Arcadian Shores | 73.8°F | 75.8°F | 73.8°F |
| Myrtle Beach | 73.7°F | 75.7°F | 74.0°F |
| North Myrtle Beach | 73.6°F | 75.7°F | 73.6°F |
| Bald Head Island | 73.4°F | 76.1°F | 74.2°F |
| Oak Island | 73.4°F | 76.2°F | 73.9°F |
| Carolina Beach | 72.6°F | 75.0°F | 72.9°F |
| Wilmington | 72.4°F | 74.2°F | 72.4°F |
| Wrightsville Beach | 72.1°F | 73.9°F | 72.2°F |
| North Topsail Beach | 71.6°F | 74.1°F | 72.3°F |
| Hatteras Island | 69.8°F | 73.5°F | 70.8°F |
| Washington | 68.4°F | 67.7°F | 70.0°F |
| Chesapeake | 67.9°F | 70.3°F | 68.4°F |
| Norfolk | 67.6°F | 68.4°F | 68.0°F |
| Saint Michaels | 66.3°F | 65.2°F | 67.8°F |
| Tangier Island | 66.2°F | 65.3°F | 67.0°F |
| Kill Devil Hills | 65.6°F | 65.6°F | 66.5°F |
| Annapolis | 65.6°F | 64.7°F | 65.9°F |
| Outer Banks | 65.6°F | 67.9°F | 67.5°F |
| Virginia Beach | 65.2°F | 65.2°F | 65.5°F |
| Corolla | 65.2°F | 66.2°F | 66.8°F |
| Nags Head | 65.1°F | 65.3°F | 66.2°F |
| Baltimore | 64.1°F | 63.5°F | 65.0°F |
| Laguna Beach | 63.8°F | 63.7°F | 64.2°F |
| Irvine | 63.7°F | 63.5°F | 64.1°F |
| Chincoteague | 63.6°F | 59.9°F | 64.7°F |
| Newport Beach | 63.6°F | 63.4°F | 64.0°F |
| San Diego | 63.6°F | 64.1°F | 63.8°F |
| Santa Ana | 63.5°F | 63.4°F | 63.7°F |
| Chula Vista | 63.0°F | 63.3°F | 63.5°F |
| Fremont | 63.0°F | 62.2°F | 63.5°F |
| Santa Catalina Island | 62.9°F | 63.5°F | 64.6°F |
| Anaheim | 62.8°F | 63.5°F | 62.9°F |
| New Castle | 62.7°F | 62.4°F | 64.2°F |
| San Jose | 62.7°F | 61.9°F | 63.2°F |
| Santa Monica | 62.5°F | 62.4°F | 63.9°F |
| Beverly Hills | 62.5°F | 62.5°F | 63.9°F |
| Hollywood | 62.5°F | 62.5°F | 63.9°F |
| Ocean City | 62.5°F | 57.7°F | 61.6°F |
| Fire Island | 62.4°F | 53.8°F | 60.0°F |
| Lewes | 62.4°F | 58.6°F | 61.0°F |
| Wilmington | 62.2°F | 61.7°F | 63.5°F |
| Los Angeles | 62.2°F | 62.2°F | 63.7°F |
| Fenwick Island | 62.0°F | 57.4°F | 60.0°F |
| Rehoboth Beach | 61.9°F | 57.9°F | 60.5°F |
| Long Beach | 61.8°F | 62.7°F | 62.4°F |
| South Bethany | 61.8°F | 57.4°F | 59.4°F |
| Bethany Beach | 61.6°F | 57.8°F | 59.9°F |
| Malibu | 61.1°F | 60.4°F | 62.4°F |
| Dewey Beach | 60.9°F | 57.3°F | 59.4°F |
| Cape May | 60.7°F | 57.4°F | 59.9°F |
| Wildwood Crest | 60.3°F | 57.1°F | 59.5°F |
| Wildwood | 60.3°F | 57.1°F | 59.5°F |
| Ocean City | 60.1°F | 56.8°F | 60.3°F |
| Atlantic City | 60.1°F | 56.5°F | 60.3°F |
| Santa Barbara | 59.9°F | 58.5°F | 60.3°F |
| Beach Haven | 59.8°F | 55.7°F | 59.8°F |
| Oxnard | 59.7°F | 58.7°F | 60.0°F |
| Brigantine | 59.6°F | 56.3°F | 60.0°F |
| Oakland | 59.4°F | 62.1°F | 61.8°F |
| Long Beach Island | 59.4°F | 55.4°F | 59.6°F |
| Bristol | 59.3°F | 56.3°F | 57.4°F |
| Sea Isle City | 59.1°F | 56.5°F | 58.9°F |
| Warwick | 58.9°F | 56.5°F | 57.3°F |
| Providence | 58.6°F | 56.0°F | 57.0°F |
| Sausalito | 58.5°F | 58.3°F | 58.2°F |
| Toledo | 58.5°F | 60.1°F | 60.1°F |
| Newark | 58.1°F | 57.4°F | 57.9°F |
| Jersey City | 58.1°F | 57.4°F | 57.9°F |
| New York | 58.0°F | 57.4°F | 57.8°F |
| New Bedford | 57.8°F | 54.9°F | 56.1°F |
| Yonkers | 57.8°F | 56.9°F | 56.4°F |
| Jamestown | 57.7°F | 55.5°F | 55.0°F |
| San Francisco | 57.5°F | 58.4°F | 58.3°F |
| Newport | 57.5°F | 55.3°F | 54.9°F |
| Seaside Heights | 57.4°F | 54.8°F | 57.0°F |
| Astoria | 57.4°F | 53.9°F | 57.9°F |
| Falmouth | 57.3°F | 54.4°F | 55.8°F |
| Port Clinton | 57.2°F | 58.8°F | 58.8°F |
| Sandusky | 57.1°F | 57.5°F | 58.5°F |
| Edgartown | 56.7°F | 53.5°F | 55.2°F |
| Santa Cruz | 56.6°F | 53.2°F | 54.7°F |
| Dennis Port | 56.6°F | 53.8°F | 55.8°F |
| Hampton Bays | 56.5°F | 53.8°F | 54.8°F |
| Martha's Vineyard | 56.5°F | 53.9°F | 54.5°F |
| Norwalk | 56.4°F | 54.3°F | 54.5°F |
| Stamford | 56.3°F | 54.4°F | 54.6°F |
| Milford | 55.9°F | 54.7°F | 54.8°F |
| Monterey | 55.8°F | 53.1°F | 53.7°F |
| New Haven | 55.7°F | 54.9°F | 54.8°F |
| Ocean Shores | 55.6°F | 54.4°F | 54.3°F |
| Nantucket | 55.3°F | 52.5°F | 54.7°F |
| Put in Bay | 55.1°F | 55.7°F | 57.4°F |
| Boston | 55.0°F | 53.0°F | 53.9°F |
| Oshkosh | 55.0°F | 55.6°F | 60.0°F |
| Cambridge | 55.0°F | 53.0°F | 53.9°F |
| Whidbey Island | 55.0°F | 51.8°F | 53.7°F |
| Yosemite | 54.7°F | 54.7°F | 54.7°F |
| Seaside | 54.7°F | 53.0°F | 53.5°F |
| Cannon Beach | 54.5°F | 52.9°F | 53.4°F |
| Charlestown | 54.4°F | 52.4°F | 51.8°F |
| Westbrook | 54.4°F | 52.6°F | 52.5°F |
| Old Saybrook | 54.4°F | 52.5°F | 52.5°F |
| Tacoma | 54.3°F | 51.4°F | 52.9°F |
| Bellevue | 54.1°F | 51.3°F | 52.3°F |
| South Lake Tahoe | 54.0°F | 49.7°F | 54.8°F |
| Groton | 54.0°F | 52.0°F | 52.2°F |
| New London | 54.0°F | 52.0°F | 52.2°F |
| Incline Village | 53.9°F | 49.5°F | 54.5°F |
| Cleveland | 53.9°F | 56.5°F | 56.8°F |
| Stateline | 53.8°F | 49.6°F | 54.9°F |
| Plymouth | 53.8°F | 51.5°F | 52.8°F |
| Bellingham | 53.8°F | 52.0°F | 55.3°F |
| New Shoreham | 53.6°F | 51.5°F | 51.4°F |
| Westerly | 53.5°F | 51.5°F | 51.2°F |
| Stonington | 53.5°F | 51.5°F | 51.3°F |
| Mystic | 53.5°F | 51.5°F | 51.3°F |
| Appleton | 53.3°F | 55.2°F | 58.9°F |
| Block Island | 53.2°F | 51.2°F | 51.1°F |
| Salem | 53.2°F | 50.6°F | 51.6°F |
| Lake Tahoe | 53.1°F | 49.3°F | 55.0°F |
| Rockaway Beach | 53.0°F | 52.4°F | 52.5°F |
| Montauk | 52.9°F | 51.4°F | 51.1°F |
| Pacific City | 52.8°F | 52.4°F | 51.7°F |
| Newport | 52.5°F | 52.3°F | 50.9°F |
| Florence | 52.4°F | 52.2°F | 50.2°F |
| Lincoln City | 52.4°F | 52.4°F | 52.4°F |
| Depoe Bay | 52.2°F | 52.3°F | 51.9°F |
| Siasconset | 51.9°F | 50.7°F | 51.9°F |
| Provincetown | 51.9°F | 51.4°F | 51.6°F |
| Green Bay | 51.9°F | 55.5°F | 55.9°F |
| Chatham | 51.7°F | 50.2°F | 51.5°F |
| Erie | 51.5°F | 50.5°F | 54.4°F |
| Chicago | 51.3°F | 51.6°F | 53.4°F |
| Hampton Beach | 51.1°F | 49.4°F | 50.3°F |
| Freeport | 51.0°F | 50.8°F | 51.4°F |
| Hampton | 50.9°F | 49.3°F | 50.2°F |
| Michigan City | 50.8°F | 51.1°F | 53.1°F |
| York Beach | 50.4°F | 48.9°F | 49.8°F |
| Portsmouth | 50.2°F | 49.3°F | 49.7°F |
| Ogunquit | 50.2°F | 48.6°F | 49.6°F |
| Wells | 50.2°F | 48.6°F | 49.7°F |
| Oak Park | 50.1°F | 50.8°F | 52.8°F |
| Kennebunkport | 50.1°F | 48.6°F | 49.8°F |
| Port Angeles | 49.8°F | 50.2°F | 48.6°F |
| Ketchikan | 49.8°F | 48.9°F | 49.5°F |
| Brunswick | 49.8°F | 49.7°F | 50.1°F |
| Buffalo | 49.8°F | 50.4°F | 52.6°F |
| Evanston | 49.7°F | 50.4°F | 52.6°F |
| Old Orchard Beach | 49.5°F | 49.4°F | 50.1°F |
| Rochester | 49.2°F | 44.2°F | 48.9°F |
| South Haven | 48.6°F | 47.9°F | 50.7°F |
| Camden | 48.5°F | 49.1°F | 49.1°F |
| Rockland | 48.5°F | 48.3°F | 47.5°F |
| Niagara Falls | 48.2°F | 50.3°F | 50.2°F |
| Milwaukee | 47.8°F | 41.7°F | 48.4°F |
| Mount Desert Island | 47.3°F | 47.6°F | 47.8°F |
| Sitka | 47.3°F | 47.5°F | 46.7°F |
| Holland | 47.2°F | 48.0°F | 48.4°F |
| Bar Harbor | 47.1°F | 47.4°F | 47.6°F |
| Lake Geneva | 46.1°F | 40.7°F | 48.7°F |
| Saugatuck | 45.6°F | 47.4°F | 49.2°F |
| Haines | 45.1°F | 45.5°F | 43.5°F |
| Juneau | 45.0°F | 45.9°F | 44.5°F |
| Valdez | 44.9°F | 46.6°F | 46.9°F |
| Seward | 42.7°F | 44.6°F | 45.8°F |
| Petoskey | 42.7°F | 39.3°F | 42.5°F |
| Harbor Springs | 42.2°F | 38.9°F | 42.3°F |
| Sturgeon Bay | 41.8°F | 44.0°F | 47.4°F |
| Homer | 41.6°F | 43.7°F | 42.9°F |
| Traverse City | 41.4°F | 38.2°F | 42.7°F |
| Mackinac Island | 41.1°F | 40.2°F | 42.5°F |
| Wasilla | 41.0°F | 45.2°F | 40.6°F |
| Anchorage | 40.9°F | 45.6°F | 42.2°F |
| Girdwood | 40.7°F | 46.1°F | 42.9°F |
| Charlevoix | 39.5°F | 36.5°F | 40.8°F |
| Kenai | 39.2°F | 42.5°F | 39.8°F |
| Marquette | 38.5°F | 36.9°F | 41.7°F |
| Duluth | 36.1°F | 35.4°F | 46.5°F |
| Bayfield | 36.0°F | 37.2°F | 43.9°F |
| Grand Marais | 34.2°F | 33.0°F | 36.4°F |
Please see following sea water temperature averages charts for the warmest USA resorts in May.
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 |  |
+46 |
| Chicago |  |
+48 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston |  |
+88 |
| Las Vegas |  |
+88 |
| Los Angeles | |
+78 |
| Miami | |
+82 |
| New York | |
+46 |
| Orlando | |
+94 |
| San Diego | |
+70 |
| San Francisco | |
+64 |
| Sarasota | |
+80 |
| Tampa | |
+84 |
| Washington | |
+70 |
