Nantucket Sound is a sound enclosed by the south coast of Cape Cod, Nantucket Island and part of Martha's Vineyard, joining Vineyard Sound to the west and the Atlantic Ocean at its eastern entrance. The tide is semidiurnal, with a mean range of 3.03 ft (0.92 m) at the Nantucket Island reference station.
- Type
- Sound
- Location
- Massachusetts, United States
- Setting
- Enclosed by the south coast of Cape Cod, Nantucket Island and part of Martha's Vineyard, joining Vineyard Sound to the west and the Atlantic Ocean at its eastern entrance
- Tidal range
- The tide is semidiurnal, with a mean range of 3.03 ft (0.92 m) at the Nantucket Island reference station.
- Notable
- A marked inside passage threads the shoals at a controlling depth of about 30 ft, used by coastwise traffic to avoid the open-Atlantic Nantucket Shoals (US Coast Pilot 2).
