Where is the sea warmest in North America in March?
In March the warmest sea in North America is at Acapulco de Juárez, Mexico, at 27.8°C. 33 of 103 cities measured are comfortable this month.
| # | City | Country | Sea | Swimming |
|---|---|---|---|---|
| 1 | Acapulco de Juárez | Mexico | 27.8°C | Bath-like |
| 2 | Chetumal | Mexico | 27.5°C | Bath-like |
| 3 | Ciudad del Carmen | Mexico | 27.2°C | Bath-like |
| 4 | Playa del Carmen | Mexico | 27.1°C | Bath-like |
| 5 | Cancún | Mexico | 27.0°C | Bath-like |
| 6 | Salina Cruz | Mexico | 26.9°C | Bath-like |
| 7 | Campeche | Mexico | 26.7°C | Bath-like |
| 8 | Coatzacoalcos | Mexico | 26.0°C | Bath-like |
| 9 | Manzanillo | Mexico | 25.6°C | Very comfortable |
| 10 | West Palm Beach | United States | 25.6°C | Very comfortable |
| 11 | Miami | United States | 25.3°C | Very comfortable |
| 12 | Hollywood | United States | 25.3°C | Very comfortable |
| 13 | Pompano Beach | United States | 25.2°C | Very comfortable |
| 14 | Veracruz | Mexico | 24.8°C | Very comfortable |
| 15 | Waipahu | United States | 24.8°C | Very comfortable |
| 16 | Honolulu | United States | 24.7°C | Very comfortable |
| 17 | Kailua | United States | 24.6°C | Very comfortable |
| 18 | Key West | United States | 24.4°C | Very comfortable |
| 19 | Hilo | United States | 24.4°C | Very comfortable |
| 20 | Puerto Vallarta | Mexico | 24.2°C | Very comfortable |
| 21 | Cape Coral | United States | 23.0°C | Very comfortable |
| 22 | Naples | United States | 23.0°C | Very comfortable |
| 23 | Melbourne | United States | 22.1°C | Very comfortable |
| 24 | Mazatlán | Mexico | 22.1°C | Very comfortable |
| 25 | Cabo San Lucas | Mexico | 21.9°C | Comfortable |
Ranked on the NOAA OISST monthly climatology — a long-run average for March, not a forecast. A given March will run warmer or cooler than this, and the sea is warmest late in the afternoon and late in the season.