Jumbo Sea Bass, Bonito Fire Up Sandy Hook Ahead of the September Turn

What's biting

What's next

With a full moon pushing stronger tidal swings through Sandy Hook Bay and the Raritan Bay reefs, expect current-driven bites — both fluke and sea bass — to sharpen around the peak tide changes over the next few days rather than spreading evenly across a session. Capt Ron's Atlantic Highlands NJ has already flagged that "power drifting" produced better results than a slack, weak-current drift this past week, and that pattern should hold through the moon phase: plan trips around the strongest push of the tide rather than the middle of a slack.

The sea bass bite that's carrying trips right now (Capt Ron's Atlantic Highlands NJ) should stay reliable into the coming days — jumbo fish have been mixing in consistently on nearly every drop, and that kind of bottom activity tends to hold through moon-phase current changes rather than shut down. Fluke will likely stay the more variable half of the pair; expect another day or two of sorting through shorts before a stronger keeper push develops, based on the inconsistency both Capt Ron's Atlantic Highlands NJ and Grumpys Tackle (NJ) have reported through late August.

The bigger shift to watch is the bonito and Spanish mackerel window. Grumpys Tackle (NJ) is already recommending epoxy jigs for these fast-moving fish, and OTW Northern New Jersey's most recent report has them established in the surf and inlets — that action should build rather than fade as water stays warm into early September. The Fisherman — Central NJ likewise points to jigs like the Deadly Dick as the go-to as "fast-moving predators begin to feed more aggressively" heading into fall.

Striped bass are the name to watch over the next couple of weeks rather than the next couple of days. The Fisherman — Northern NJ reports captains around Belmar are already planning to pivot to bass once the fluke season winds down, and multiple Northern NJ boats describe this year's action as running "late," which points to a compressed but potentially strong September push rather than a slow fade. Anglers planning ahead should treat Labor Day weekend and the first two weeks of September as the window where sea bass, bonito, and an early striper bite could all overlap on the same tide.

Context

Late August into early September is typically a transition window for Raritan Bay and Sandy Hook — summer species like fluke and sea bass stay active but start thinning out on the flats, while the first signs of the fall run (bonito, Spanish mackerel, and eventually striped bass) move in from the ocean side. This year's intel suggests that transition is running slightly behind average: Ol' Salty II out of the Northern NJ fleet (The Fisherman — Northern NJ) describes the whole season as "late," with captains only now planning the seasonal switch from fluke to striped bass.

On the encouraging side, the sea bass fishing described by Capt Ron's Atlantic Highlands NJ this week — multiple limits, jumbo fish mixed in — is a stronger showing than a typical late-August lull, when the bite often thins before rebounding in fall. The bonito and Spanish mackerel push reported by both Grumpys Tackle (NJ) and OTW Northern New Jersey is roughly on the seasonal calendar for this stretch, consistent with the warm-water pattern these fish typically follow along the Jersey Shore.

We don't have a direct week-over-week or year-over-year dataset to quantify exactly how this compares to prior seasons — the read here is qualitative, built from what shops and captains are saying right now rather than logged catch totals. Treat the "late" framing as directional: something to watch over the next couple of weeks as the fluke-to-striper handoff plays out, not a confirmed trend.