In March warmest sea in USA is usually observed in the following locations: West Palm Beach, Key Largo, Miami Beach.
Table below shows the average sea water temperature for marine resorts of USA in March for the last three years.
| Place name | March 2026 | March 2025 | March 2024 |
|---|---|---|---|
| West Palm Beach | 77.1°F | 75.8°F | 76.6°F |
| Key Largo | 76.8°F | 75.1°F | 76.9°F |
| Miami Beach | 76.8°F | 75.3°F | 76.0°F |
| Honolulu | 76.7°F | 76.8°F | 75.8°F |
| Fort Lauderdale | 76.6°F | 75.8°F | 75.7°F |
| Hawaii | 76.5°F | 76.7°F | 75.7°F |
| Kauai | 76.5°F | 75.0°F | 74.5°F |
| Key West | 76.5°F | 74.5°F | 76.5°F |
| Miami | 76.0°F | 74.4°F | 75.5°F |
| Maui | 75.5°F | 76.0°F | 75.1°F |
| Oahu | 74.9°F | 75.7°F | 74.5°F |
| Cape Coral | 73.9°F | 71.7°F | 74.2°F |
| Port St. Lucie | 73.8°F | 71.5°F | 73.7°F |
| South Padre Island | 72.7°F | 66.8°F | 69.0°F |
| Naples | 72.6°F | 71.4°F | 73.8°F |
| Corpus Christi | 71.9°F | 67.0°F | 69.1°F |
| Tampa | 71.7°F | 69.3°F | 71.7°F |
| Cocoa Beach | 71.7°F | 70.0°F | 71.5°F |
| Sarasota | 70.6°F | 68.6°F | 71.4°F |
| Clearwater Beach | 70.2°F | 67.6°F | 70.4°F |
| Siesta Key | 70.1°F | 68.5°F | 71.3°F |
| Houston | 69.4°F | 64.6°F | 66.1°F |
| Galveston | 68.8°F | 64.1°F | 66.1°F |
| Pensacola | 67.8°F | 65.1°F | 64.7°F |
| New Orleans | 67.3°F | 63.5°F | 65.2°F |
| Orange Beach | 67.2°F | 65.3°F | 64.3°F |
| Pensacola Beach | 66.8°F | 65.1°F | 64.4°F |
| Orlando | 66.6°F | 66.3°F | 66.3°F |
| Destin | 66.5°F | 65.3°F | 64.5°F |
| Fort Walton Beach | 66.4°F | 65.3°F | 64.4°F |
| Santa Rosa Beach | 66.2°F | 65.1°F | 64.5°F |
| Panama City Beach | 66.0°F | 64.9°F | 65.5°F |
| St. George Island | 66.0°F | 64.9°F | 65.4°F |
| Daytona Beach | 65.3°F | 65.5°F | 65.1°F |
| San Diego | 64.4°F | 58.8°F | 62.8°F |
| Santa Catalina Island | 63.1°F | 57.5°F | 59.8°F |
| Laguna Beach | 63.0°F | 57.3°F | 59.6°F |
| St. Augustine | 62.8°F | 63.0°F | 63.6°F |
| Irvine | 62.7°F | 57.3°F | 59.4°F |
| Newport Beach | 62.6°F | 57.2°F | 59.4°F |
| Santa Monica | 62.5°F | 56.3°F | 58.9°F |
| Hollywood | 62.5°F | 56.4°F | 59.0°F |
| Beverly Hills | 62.5°F | 56.4°F | 59.0°F |
| Los Angeles | 62.3°F | 56.5°F | 59.0°F |
| St. Simons Island | 62.1°F | 60.6°F | 62.3°F |
| Malibu | 61.8°F | 55.6°F | 58.2°F |
| Long Beach (CA) | 61.7°F | 56.3°F | 58.9°F |
| Amelia Island | 61.7°F | 61.1°F | 62.4°F |
| Jacksonville | 61.6°F | 61.4°F | 62.5°F |
| Santa Barbara | 61.2°F | 54.9°F | 57.1°F |
| Hilton Head Island | 60.9°F | 59.0°F | 61.4°F |
| San Jose | 60.7°F | 56.1°F | 57.1°F |
| Tybee Island | 60.6°F | 58.7°F | 61.1°F |
| Charleston (SC) | 60.3°F | 58.3°F | 60.7°F |
| Kiawah Island | 59.6°F | 58.3°F | 60.5°F |
| Isle of Palms | 59.4°F | 58.4°F | 60.4°F |
| San Francisco | 57.7°F | 54.4°F | 56.0°F |
| Santa Cruz | 57.3°F | 53.5°F | 56.3°F |
| Carolina Beach | 56.9°F | 55.5°F | 58.2°F |
| Monterey | 56.8°F | 54.1°F | 57.2°F |
| Bald Head Island | 56.7°F | 57.0°F | 58.9°F |
| Wilmington (NC) | 56.3°F | 54.7°F | 57.8°F |
| North Myrtle Beach | 55.8°F | 56.4°F | 58.8°F |
| Myrtle Beach | 55.7°F | 56.4°F | 58.9°F |
| Florence | 51.3°F | 50.0°F | 51.9°F |
| Cannon Beach | 50.0°F | 49.3°F | 50.9°F |
| Outer Banks | 49.7°F | 52.6°F | 53.1°F |
| Washington | 48.1°F | 48.3°F | 49.8°F |
| Bellevue | 47.9°F | 47.7°F | 47.6°F |
| Tacoma | 47.9°F | 46.6°F | 47.5°F |
| Kill Devil Hills | 46.8°F | 50.5°F | 51.7°F |
| South Lake Tahoe | 46.1°F | 43.1°F | 42.9°F |
| Lake Tahoe | 45.8°F | 43.2°F | 42.9°F |
| Virginia Beach | 45.7°F | 47.5°F | 49.7°F |
| Baltimore | 44.1°F | 43.8°F | 47.0°F |
| Atlantic City | 41.7°F | 43.5°F | 45.9°F |
| Sea Isle City | 41.1°F | 43.2°F | 45.4°F |
| Cape May | 41.1°F | 43.6°F | 45.7°F |
| Bethany Beach | 41.0°F | 44.8°F | 46.6°F |
| Dewey Beach | 40.9°F | 44.5°F | 46.4°F |
| Long Beach Island | 40.8°F | 42.7°F | 45.4°F |
| Rehoboth Beach | 40.6°F | 44.1°F | 46.1°F |
| Ocean City (MD) | 40.4°F | 44.7°F | 46.6°F |
| Nantucket | 40.0°F | 39.7°F | 41.3°F |
| New York | 38.6°F | 41.7°F | 43.8°F |
| Yosemite | 38.6°F | 38.5°F | 39.2°F |
| Jersey City | 38.6°F | 41.7°F | 43.9°F |
| Boston | 38.0°F | 39.1°F | 40.8°F |
| Martha's Vineyard | 37.7°F | 39.6°F | 40.7°F |
| Hampton Beach | 37.6°F | 38.4°F | 40.4°F |
| Hampton | 37.6°F | 38.4°F | 40.4°F |
| New Bedford | 37.2°F | 39.7°F | 41.1°F |
| Port Clinton | 37.0°F | 38.4°F | 41.9°F |
| Old Orchard Beach | 36.9°F | 38.7°F | 40.1°F |
| Chicago | 36.6°F | 37.4°F | 39.8°F |
| Michigan City | 36.4°F | 36.8°F | 39.7°F |
| Milwaukee | 34.8°F | 36.5°F | 37.7°F |
| Holland | 34.4°F | 33.9°F | 37.4°F |
| Anchorage | 34.4°F | 34.4°F | 34.7°F |
| Niagara Falls | 34.1°F | 34.2°F | 34.1°F |
Charts below show average sea water temperature for USA resorts with the warmest sea in March.
You can also check other months of the year to see sea temperature of USA resorts at that time.
Places in USA:
Name
°F
