The run timing is temperature-driven — when inland water cools below 65°F, flounder move toward inlets to escape cold backwater. Fishing during the run produces stacked flounder along channel edges and at inlet mouths. Migration calendar pages cover state-by-state flounder timing.
Inshore Migration Timing
When do flounder run in North Carolina?
The fall flounder run in North Carolina peaks in October as flounder migrate from inland sounds and bays out to ocean inlets and offshore wintering grounds. Peak activity at major inlets (Oregon Inlet, Hatteras Inlet, Beaufort Inlet) runs from late September into early November.
More from Inshore Migration Timing
- When do striped bass arrive in the Chesapeake Bay?
- When do redfish school in the fall?
- When do Spanish mackerel arrive in spring?
- When does cobia show up in the Chesapeake Bay?
- When do speckled trout move to grass flats in spring?
- When do bluefish arrive in the Northeast?
- Why do fish migrate and what triggers it?
- How does water temperature drive fish migration?
Bield Fish earns its predictions.
14-day free trial. No credit card. Cancel anytime.