Weakfish Return to Delaware Bay as Flounder Bite Holds Steady

What's biting

What's next

Heading into Labor Day weekend, The Fisherman (Northeast)'s NJ/DE Bay Region forecast points to a stretch of exotic and speedy species mixing in with the bay staples — a purported inshore white marlin catch and release within 10 miles of the beach, a Delaware barracuda (also confirmed this week by the DE/MD/Chesapeake report from Hook 'em and Cook 'em), and South Jersey boats finding success on cobia. False albacore, Spanish mackerel, and bonito are reportedly showing in the mix too, giving anglers who want speed over meat a reason to work the surf and inlets rather than sit on bottom rigs.

For the bay itself, this week's trend lines should carry through the weekend and into early next week. Weakfish only just showed up per Hands Too Bait and Tackle, and a fresh push like that typically builds for a week or two before it fades — worth working bloodworms and jigs at dusk and after dark along the jetty tips and seawalls while the run is young. The EP Tower bite Higbee's described reads like peak activity for that spot; expect the mixed bag there (croaker, weakfish, tog, triggers) to hold over the next several tides, with flounder likely the first species to taper as water cools further into September.

Back-bay flounder should keep splitting into two tiers: short fish will keep hammering anything drifted through the shallows on warm afternoons, while keeper-grade fish stay committed to deeper structure near the inlet and reef sites, per Big Dave's Tackle — plan afternoon trips for volume and early-morning or evening pushes to deeper water for a better shot at keepers. Croaker and spot should stay consistent on bloodworms and Fishbites through the week, a bite that typically holds until a real cool-down arrives.

With the moon at Last Quarter, expect moderate tidal swings rather than the extremes around a new or full moon — a workable window for fishing structure without fighting maximum current. The days after Labor Day often bring the first real cool nights of the season to South Jersey, which should accelerate the fall transition; watch for the false albacore and bonito bite noted by The Fisherman (Northeast) to build along the ocean beaches as that cooling arrives, with weakfish and flounder gradually sliding toward deeper bay water over the following two to three weeks.

Context

Early September on the Delaware Bay NJ side typically means the tail end of the summer flounder run overlapping with the first stirrings of fall — croaker, spot, and sea bass holding steady while weakfish and sheepshead round out the back-bay and inlet game. This week's reports track close to that seasonal script, with one notable wrinkle: Hands Too Bait and Tackle specifically flagged that weakfish had been 'suspiciously missing all spring and summer' before showing up this week. A return arriving this late, right at Labor Day, reads more like a delayed fall push than an early one — this bay's weakfish more typically show in stronger numbers earlier in the season, so the fish may simply be on the fall side of a bust summer rather than ahead of schedule.

The EP Tower flounder action Higbee's described — multiple limits to 22 inches and pool fish to 25 — is a strong showing for this point in the season, when fluke more often thin out as fish stage toward the bay mouth ahead of their offshore migration. The mixed warm-water species mentioned regionally (barracuda, cobia, a white marlin close to the beach) fit the pattern of warm-water intrusions becoming a more common late-summer feature in the Northeast, though the available angler-intel feeds don't offer a multi-year baseline for this exact bay to say whether this year's mix is unusually heavy. On balance, there isn't enough historical comparison in the data here to call this season clearly ahead of or behind normal overall — only that weakfish arrived later than the shops were expecting.