Fluke, Stripers, and Sea Bass All Active as Sandy Hook Shifts into Summer

What's biting

What's next

With the First Quarter moon on June 23, tidal windows along Sandy Hook and Raritan Bay will feature moderate push and pull through the weekend. First Quarter tides build incrementally, and the moving water tends to keep bait schools active along structure, bridge pilings, and inlet edges. Plan fluke drifts to coincide with the first two hours of an incoming or outgoing tide for best results.

Water temperatures in the low 60s, based on Capt Ron's Atlantic Highlands readings from mid-June, sit squarely in the sweet spot for summer flounder activity. OTW Northern New Jersey's June 18 report notes the fluke bite is improving from bay waters to oceanside beaches, and that trend should continue over the coming days as temperatures nudge higher. Rocky bottom remains the priority zone per Capt Ron's: medium-action rods with heavier sinkers to stay in the strike zone.

For striped bass, the transition from spring clam fishing to summer patterns is accelerating. On The Water's June 19 striper migration map shows bigger fish keying on sand eels, squid, and bunker as they shift from their classic spring surf haunts. Dawn and dusk windows remain most productive. Clams in the surf are still a consistent producer per Grumpys Tackle, though anglers willing to work lures through rip lines and current seams could find topwater opportunities in low-light hours.

Sea bass action on offshore reefs remains red hot. Blue Chip Sportfishing has been reporting near-limits on nearly every trip, a pattern consistent with the mid-June window when fish are well-positioned on structure before summer heat pushes them deeper. Targeting hard-bottom structure in the 60 to 90 foot range should produce throughout the weekend.

Shark action has opened up offshore per Blue Chip, with multiple Mako sharks caught and released recently. Anglers running offshore have an opportunity to mix target species on the same trip.

A developing story for later in the season: bluefin tuna are moving closer to the coast. OTW Northern New Jersey flagged the bite picking up to the south in their June 18 report, and Fishermans HQ LBI noted a significant squid invasion off the Jersey coast drawing bluefin within 20 to 30 miles of the beach. If that pattern holds and bait concentrates off Sandy Hook, tuna opportunities could materialize for well-equipped boats within the next few weeks.

Weekend plan: early morning stripers in the surf are the priority move. Follow with a fluke drift through the bay during mid-morning, then target sea bass structure in the afternoon when wind typically lays down.

Context

Late June along Raritan Bay and Sandy Hook typically marks the end of the prime spring striper push and the opening of reliable summer fluke and sea bass fishing. In most years, the big migratory stripers have largely cleared the bay by the third week of June, leaving behind resident fish scattered across inlet channels and rocky structure. The fact that Grumpys Tackle and OTW Northern New Jersey are still reporting consistent striper action in the surf through mid-to-late June suggests the 2026 run has been productive and lingering later than average.

Fluke fishing in Raritan Bay generally comes into its own by Memorial Day weekend, with action improving through June and peaking in July when water temps settle into the upper 60s. Capt Ron's Atlantic Highlands reports are consistent with the normal early-summer arc: keepers mixing with short fish over hard bottom, with Gulp presentations producing the edge. The mid-June improvement noted by OTW Northern New Jersey aligns with what anglers typically see as bay water warms and bait schools concentrate.

Sea bass on the offshore reefs and nearshore wrecks are reliably strong through the summer, and Blue Chip's near-limit reports track with the typical pattern for this time of year. The species holds steady through July before deepening offshore as water temps rise.

The most notable 2026 development is the apparent early push of bluefin tuna off the Jersey coast, with multiple sources pointing to a squid-driven bait concentration pulling fish unusually close to shore. Bluefin typically don't show in catchable numbers within 20 miles of the beach until late June or July, so this represents a slightly accelerated timeline if it holds.

Overall, the Raritan Bay and Sandy Hook corridor is tracking at or slightly ahead of a normal summer progression for 2026, with multiple species simultaneously in season.