Simple Tides / Guides / Southeast Atlantic Tides: Carolinas to Florida

Southeast Atlantic Tides: Carolinas to Florida's East Coast

This stretch of coast holds a genuine surprise: the tidal range actually grows as you head south from North Carolina into Georgia, before shrinking again in Florida — the opposite of what most people assume.

The Georgia Bight effect

The coastline between South Carolina and northern Florida curves inward, forming a wide, shallow indentation known as the Georgia Bight. That shape funnels and amplifies the incoming tide in a smaller-scale version of the same physics behind the Bay of Fundy, pushing the range up to 6–8 feet around the Georgia and South Carolina Sea Islands — notably larger than the coastline immediately to the north or south.

The Outer Banks and Carolina coast

North Carolina's Outer Banks see a more moderate 3–5 foot semidiurnal range, with strong currents through inlets like Oregon Inlet and Hatteras Inlet that matter a lot for boaters and anglers timing a run offshore.

Florida's east coast

By the time the coast reaches Florida, the range has settled back down to a more typical 3–4 feet, still semidiurnal, with the Gulf Stream running close offshore adding its own influence on nearshore water conditions independent of the tide itself.

What the region is known for

This coast has a strong surf fishing tradition and some of the best-known surfing on the East Coast, particularly around Cape Hatteras and the Outer Banks. It's also squarely in the Atlantic hurricane belt, making storm surge awareness essential in the warmer months.

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