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Fishing seasons & conditions by region

Summer Flounder Paralichthys dentatus

Summer Flounder (Paralichthys dentatus) fish identification illustration

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Summer Flounder Size, Range & Diet

Typical size15–22 in, 1–4 lb
Maximumup to 37 in and about 26 lb
Lifespan12–14 years
RangeAtlantic coast from Nova Scotia to Florida, most abundant from Cape Cod, Massachusetts south to Cape Fear, North Carolina.
HabitatSand and mud bottom in bays, inlets, channel edges and nearshore ocean in the warm months, dropping to the outer shelf in winter.
DietAmbushes small fish such as bay anchovy, silversides and sand eels, plus squid, shrimp and crabs taken off the bottom.

Sizes are typical rod-and-reel and documented maximum figures, not size limits — see the regulations links below for the rules where you fish.

How to Identify a Summer Flounder

Tell it apart: With the dark side up and the dorsal fin away from you, the eyes sit on the LEFT and the mouth is large and toothy, the gape reaching past the eye, separating fluke from the smaller, right-eyed, tiny-mouthed winter flounder.

Side by side: Summer Flounder vs Winter Flounder

How to Catch Summer Flounder

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When & Where Summer Flounder Are in Season

Peak Good Fair Slow
JanFebMarAprMayJunJulAugSepOctNovDec
Mid-Atlantic Inshore
Northeast Nearshore

Summer Flounder Regulations

Always check local regulations — seasons, size, and bag limits vary by state and species, and change year to year. When in doubt, release.

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