Northeast Florida tides drive fishing in the St. Johns River system — Mayport jetties on outgoing tide, the Inland Waterway oyster bars, and the river itself. Tarpon migrate up the St. Johns in summer.
Semidiurnal tides with 4–5 ft range. St. Johns River system is the largest tidal river system in this geography — current corridors extend 30+ miles upriver.
Live tide predictions and observations from NOAA — pair with this guide for trip planning.
Activity level for each Northeast Florida & St. Johns River Tidal primary target species across the four tide stages. Tap a species for the full tide guide.
| Species | Incoming | High Slack | Outgoing | Low Slack |
|---|---|---|---|---|
| Red Drum | good | fair | peak | fair |
| Speckled Trout | good | fair | peak | fair |
| Southern Flounder | good | fair | peak | poor |
| Tarpon | good | fair | peak | fair |
| Sheepshead | peak | good | good | fair |
Inlets have the strongest tidal currents on the inshore side of any coastline. Outgoing tide flushes baitfish from bays to ocean — predators stage on the seaward side to ambush. Incoming tide pushes ocean baitfish into the bay — predators stage on the bayside. Slack tides fish poorly at most inlets except sheepshead and resident species.
On the rising tide, water pushes baitfish, shrimp, and crabs up into the marsh grass. On the falling tide, that same prey is flushed back through the narrow creek mouths and channels — concentrated by the geometry of the drain. The last two hours of outgoing tide at a creek mouth is the most productive window in inshore fishing because of this flushing effect.
Current creates eddies and shadow lines on the downstream side of every piling. Predators hold in the shadow line ambushing bait swept past by the current. The strongest current — usually mid-incoming or mid-outgoing — produces the most pronounced shadow line and the most concentrated fish.
Oyster bars fish in two distinct windows. As the tide first floods the bar, sheepshead and black drum move onto the structure to feed on barnacles and crabs. As the tide drops and exposes the bar, redfish and trout key on the edges and drains. Mid-tide periods (when the bar is fully submerged) often fish slower than the transitions.
| Species | Best stage | Top water type | Top presentation |
|---|---|---|---|
| Red Drum | Outgoing Tide | Grass Flats | Soft plastic paddletail on jighead |
| Speckled Trout | Outgoing Tide | Grass Flats | Topwater plug at first/last light |
| Southern Flounder | Outgoing Tide | Inlets & Jetties | Bucktail tipped with squid or Gulp! |
| Tarpon | Outgoing Tide | Florida & Gulf Passes | Live mullet free-lined |
| Sheepshead | Incoming Tide | Oyster Bars & Shell Bottom | Live fiddler crab on small hook |
Bield: Fish reads NOAA tide tables, applies the species guidance from this page, and alerts you when the optimal window for your target species is about to begin.
