Warm Keys waters hold as snook stage for the fall shift
NOAA CO-OPS stations 8724580 and 8723970 are both reading water temperatures near 88°F this week, confirming the Florida Keys are still locked into late-summer warmth even as the calendar turns toward fall. That heat keeps the flats and nearshore reef holding in a peak-season pattern longer than points farther north. On the regulatory side, CCA Florida is tracking a rocky stretch for South Atlantic reef-fish management: a federal court just granted a preliminary injunction blocking the 2026 exempted fishing permit pilot programs for Florida, Georgia, South Carolina and North Carolina, unwinding season plans that had only recently cleared. Anglers with offshore trips planned around that fishery should expect the rules to keep shifting through the fall. Elsewhere, Sport Fishing Mag notes snook are starting to feel the shorter days and begin moving toward winter holding water as the Gulf transitions, a shift worth watching as it reaches south Florida in the coming weeks.
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The 88°F readings should hold steady over the next two to three days, with typical late-summer humidity and afternoon thunderstorm risk for the Keys, so check the local marine forecast before running offshore or out onto open flats. With water still this warm, the broader shift toward cooler-water patterns will lag behind the rest of the state; Sport Fishing Mag's note on snook beginning to move toward winter holding areas is an early preview of what should start building on the flats and around passes as temperatures ease later in the fall.
The First Quarter moon this week brings moderate tidal exchange rather than the bigger swings of a full or new moon, so morning and late-afternoon windows around moving water are the better bets over the next few days.
On the reef-fish management front, watch for further CCA Florida updates in the coming weeks: the injunction against the South Atlantic pilot programs could still reshape any remaining 2026 season dates, so confirm current rules before booking or running an offshore trip tied to that fishery.
Context
Mid-to-late September in the Florida Keys sits at the tail end of the traditional summer pattern, when warm water and abundant bait typically hold flats and reef activity at a high level before the fall transition accelerates in October. Water temperatures in the upper 80s are normal for this point in the season and on schedule for the Keys, which cool more gradually than the rest of Florida thanks to the depth of the Straits and the nearby Gulf Stream. The reef-fish management fight CCA Florida is following is part of a longer-running seasonal and regulatory cycle for South Atlantic anglers, with pilot programs, court challenges and season-date changes recurring in recent years. As with any transition period, conditions here can flip from stable to unsettled on short notice, so this stretch is best read as a normal seasonal lull between summer's peak and the more dynamic pattern that typically develops closer to October.
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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