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Bield:Fish
Single-region spawn timing

Southern Flounder spawn timing in South Carolina Lowcountry.

Paralichthys lethostigmaOctober – November

Lowcountry SC fall flounder migration.

Calendar & temperature

JanJan — Outside spawn windowFebFeb — Outside spawn windowMarMar — Outside spawn windowAprApr — Outside spawn windowMayMay — Outside spawn windowJunJun — Outside spawn windowJulJul — Outside spawn windowAugAug — Outside spawn windowSepSep — Pre-spawn — water rising toward 59°FOctOct — Peak spawn (62–66°F)NovNov — Peak spawn (62–66°F)DecDec — Post-spawn — water at 70°F+
Typical window: October – November
32°37°42°47°52°57°62°67°72°77°82°87°Peak 6266°F
Pre-spawn — best fishingPeak spawn — conservationPost-spawn — recovery feeding·Dashed line = peak spawn boundaries

Phase-by-phase

Pre-Spawn

Trophy fishing window
65–59°F

Pre-spawn southern flounder leave inshore habitat in fall (October–November) and migrate offshore to spawn — the fall flounder run.

The fall flounder run staging at inlets and inlet-adjacent waters is the highest-volume flounder fishing of the year — but coincides with closed seasons in NC and TX.

Spawn

Conservation window
59–70°F (peak 62–66°F)

Active spawning behavior. Broadcast spawners offshore. Adult flounder migrate offshore to spawn after years of inshore growth.

Southern flounder are overfished in NC and parts of the Gulf — multiple states close inshore harvest during the fall spawn migration (NC October–November closure is the most prominent). C&R during the

Conservation context

Southern flounder are overfished in NC and parts of the Gulf — multiple states close inshore harvest during the fall spawn migration (NC October–November closure is the most prominent). C&R during the run is mandatory in some states.

Post-Spawn

Recovery feeding
70–78°F (~21 days)

Post-spawn flounder return inshore through winter and spring as juveniles recruit to inshore nursery areas.

Spring flounder fishing in inshore creeks and channels begins in March in the Carolinas, building through summer.

Summer Pattern

Standard patterns
Above 78°F

Fish disperse to summer habitat and feeding patterns. Spawn cycle complete until following year.

Standard summer fishing tactics apply.