Full moon tides align with mullet run buildup on FL's Atlantic coast
Atlantic-coast water temps are running warm for late September, ranging from 81.3°F to 85.6°F across our two NOAA CO-OPS tide stations, with tonight's full moon pushing bigger-than-average tidal swings. Both stations bottom out in the pre-dawn hours, around 1:23 AM and 1:49 AM EDT, then build toward highs at 7:34 AM and 8:12 AM EDT. Snook Nook in Stuart reports the season's mullet run is underway, with schools of larger mullet showing inshore and moving down the beaches, though the shop notes this year's run is trending later than usual after a cooler winter, with finger mullet still light.
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Watch the mullet schools Snook Nook flagged this week; as those baitfish pushes consolidate along the beach and inlet mouths, predator activity typically tightens up around them. With a full moon amplifying the tidal range, the pre-dawn low-to-mid-morning-high window at both stations is worth building a trip around heading into the weekend, since moving water on a bigger swing concentrates feeding activity at structure and current breaks.
Separately, CCA Florida reports a 14-day fall red snapper season has moved forward for South Atlantic anglers under an exempted fishing permit, after a court injunction had put the broader pilot program in question. Anglers planning offshore trips around that season should check current state regulations for exact open dates and bag limits before targeting or harvesting, as terms have shifted through the year.
Context
Late September on Florida's Atlantic coast sits at the seasonal hinge between summer's inshore holding patterns and the fall baitfish migration, when mullet runs typically build toward a peak over the following weeks. Water in the low-to-mid 80s is normal for this point in the calendar and hasn't yet turned toward the cooler, clearer water that marks the later fall transition. A slower start to the mullet run, as Snook Nook's report describes, tracks with a cooler winter earlier this year — the current mix of larger mullet inshore with finger mullet still scarce is typical for where a run stands in its early build phase.
Synthesized from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Check local regulations before keeping fish. Never trust a single source for a trip decision.
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