September 2025 — Jacksonville: Snook Season Reopens, Fall Fishing Begins, Excellent All-Around Month. September is a early fall month with water in the 78–84°F range — snook season reopens (FL); bait migrations begin; redfish bulls show. Here’s the full breakdown of what’s biting, where to fish, and the most productive tactics for this month.
What’s Biting — September 2025
Primary targets this month: Snook, Redfish, Flounder.
Snook
Snook are in the St. Johns River south of the Buckman Bridge, the ICW around Palm Valley, and Pablo Creek (still rare this far north but worth targeting in warm months). Live pilchards, scaled sardines, and finger mullet are top live baits. Artificial: white DOA Bait Buster, MirrOdine, and walking topwaters at first and last light. Always check current FWC snook season dates — slot is 28–33″ Atlantic, 28–33″ Gulf, with seasonal closures.
Redfish
Redfish are in the marshes of Pumpkin Hill Creek, Sisters Creek, Browns Creek, Cedar Point flats, and the docks of Black Hammock Island. Cut bait, gold spoons, and soft plastics on light jigheads all produce. Match the tide and look for activity on shorelines with clean water.
Flounder
Flounder are around Mayport jetties, the rock piles inside the St. Johns River mouth, the train trestle, and Sisters Creek. Bucktails with Gulp! trailers, live mud minnows, and finger mullet on Carolina rigs produce. Work baits slow on the bottom.
Water Conditions & Patterns
Water temperatures are running 78–84°F. Snook season reopens (fl); bait migrations begin; redfish bulls show. Falling tides through the Mayport jetties create the best bite windows; sheepshead and redfish position behind structure where current breaks. Two hours before to two hours after low tide is prime.
Check the NOAA marine forecast and tide charts before launching. Wind direction matters more than wind speed for inshore fishing — east winds tend to push clean water in, while strong westerlies can muddy the bays.
Tactics & Tackle for This Month
- Mullet run. Massive bait migrations south along the coast trigger feeding frenzies — every predator follows. Target inlets, passes, and beach troughs.
- Topwater dawn. The fall coolness extends the topwater window — walk-the-dog baits (Heddon Spook, MirrOlure Top Dog) produce explosive strikes.
- Front timing. The 24 hours before a cold front pushes through are typically lights-out; the day after is often slow as fish reset.
September Outlook
Snook season reopens in Florida — bag a slot before the next closure. Mullet begin migrating south. First cold fronts of the year reset patterns.
Regulations Reminder
Snook: 28–33″ slot (Atlantic), 28–33″ slot (Gulf), one fish per angler per day; seasonal closures apply (typically Dec 15–Jan 31 and Jun 1–Aug 31 on Gulf; Dec 15–Jan 31 and Jun 1–Aug 31 on Atlantic — verify current FWC dates). Snook stamp required. Redfish: 18–27″ slot, one per angler per day (verify current FWC zone-specific rules). Flounder: 14″ minimum, five per day (Florida). Always verify the current FWC regulations at myfwc.com before your trip — sizes, bag limits, and season dates change.
Local Resources
Bait & Tackle: B&M Bait & Tackle (Mayport, 904-246-6969); Strike-Zone Fishing (Jacksonville, 904-641-2433); Fishin’ Hole (Atlantic Beach, 904-757-7550).
Public Boat Ramps: Mayport (free, fast access to jetties), Sisters Creek (deep-water access to north river), Goodbys Creek (south side ICW), Wayne B. Stevens (Heckscher Drive).
Charter Fishing: $400–$650 inshore (Mayport, St. Johns); $750–$1,400 offshore (Elton Bottom, Hangover). Book ahead during cobia migration (March–April), red snapper opener (June), and the fall run (October–November).
More Jacksonville Resources
Jacksonville Fishing Guide · Jacksonville Seasonal Calendar · All Jacksonville reports →
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