Indian River Lagoon Fishing Report — April 2025
Tarpon migration through the IRL picking up; snook feeding aggressively ahead of the spawn. Updated every Thursday with current conditions, what’s biting, and where to focus your fishing effort.
What’s Biting in Indian River Lagoon — April 2025
Check back every Thursday for updated fishing conditions and current bite reports for Indian River Lagoon. See our Indian River Lagoon fishing guide for full seasonal information.
April: Tarpon Build, Snook Turn On
April is the month the Indian River Lagoon really comes alive. Water temperatures climb from the low 70s into the upper 70s, and that warm-up triggers nearly every gamefish in the system to start feeding hard. Tarpon roll on the surface of the deeper basins from Sebastian Inlet south to Vero. Snook push out of their winter holes and into the flats and shorelines. Redfish school up tight in Mosquito Lagoon as the water clears. And the seatrout bite, which has been steady through winter, hits its highest sustained quality of the year.
Tackle & Technique
For the IRL trout bite, a 7-foot medium spinning rod with 15 lb braid and a 20 lb fluoro leader covers most situations. Top lures: a 1/4 oz weighted swimbait on a hook, a Z-Man PaddlerZ on a jighead, or a topwater plug at first light. For redfish, scaled-down tackle and a quiet approach matter more than gear specs — the fish in the IRL get pressured and educated quickly. Tarpon-targeting anglers can drift live mullet, large pinfish, or threadfins under a popping cork in the Sebastian Inlet basin and the deeper channels around the spoil islands.
Where to Fish
Mosquito Lagoon’s east shoreline and the flats around the JB Starkey Wilderness Park are reliable for redfish in April. The Sebastian Inlet, both inside and outside, holds snook, tarpon, and snapper. The grass flats from Wabasso south to Vero produce solid trout fishing on incoming tides, especially on the western shoreline. The deeper docks and seawalls hold snook and large trout, particularly at first light.
Conditions to Watch
Water clarity in the IRL has been a chronic issue, but April typically brings improving conditions as the system stabilizes from winter winds. Watch the local seagrass coverage maps — areas with healthy grass hold the most fish. Tides in the lagoon are minimal and wind-driven; pay more attention to wind direction than to printed tide tables. A southeast wind pushes water onto the eastern flats; a north wind drains them.
Local Knowledge
April is when the early-season visiting tarpon anglers start showing up. The local fish are still relatively unpressured. Run later in the morning when most tournament boats have already burned through their best spots — the 10am to 2pm window can produce surprisingly well in April, especially under cloud cover. And always pole the last 100 yards of any approach to redfish — these fish hear motors at extraordinary distances in the shallow lagoon.
Where to focus this month
April is when the lagoon shifts firmly into its spring pattern. Tarpon numbers build in the deeper basins and along the warmer edges, and the fish become more willing as the water climbs through the 70s. Snook stage at Sebastian Inlet and around the deeper structure as they feed heavily ahead of the spawn — and with the Atlantic snook season open through the end of May, there is a harvest opportunity within the slot for anglers who want one. Big gator seatrout move up onto the flats, and the topwater bite comes alive in the low light.
Tactics for April
Early and late are the windows now. Work topwater plugs and soft-plastic jerkbaits over the flats at first light for trophy trout and reds, then shift to live bait or larger swimbaits around the inlet and the basins for snook and tarpon as the sun gets up. The inlet fishes well on the moving tide, and the tarpon respond to a quietly presented bait in the deeper, warmer water.
The month ahead
May and June push the tarpon to their peak and close the snook harvest season, so April is prime time to target staging snook within the rules and to get tight to the building tarpon. Mind the slot and bag limits, and handle the big trout and the tarpon with care.