Fluke Improving and Stripers Still Running as Delaware Bay Enters Summer

What's biting

What's next

The first-quarter moon on June 21 sets up a transitional bite window that rewards anglers who work the tide. With the moon building toward full over the next two weeks, tidal current through Delaware Bay's channel slots will gradually intensify — a trend that historically improves fluke and bottom-species action as fish key on the moving water to ambush bait.

On the fluke front, OTW Northern New Jersey's June 18 report specifically noted fishing "improving from bays to beaches," which is the directional signal Delaware Bay anglers look for as summer establishes itself. Capt Ron's Atlantic Highlands NJ reported water temperatures rebounding to 61°F after a stretch of cooler 56°F readings earlier this month — once bay temps settle firmly in that low-60s band, keeper fluke become far more consistent on the channel edges and over hard bottom structure. Drift presentations with Gulp or live killies over rocky bottom have been the method of choice per the Atlantic Highlands intel.

Striped bass remain in play but are shifting behavior. On The Water's June 19 migration map confirms bigger fish are now keying on sand eels, squid, bunker, and herring rather than the clam and chunk patterns that dominated the spring surf. Grumpys Tackle (NJ) reports the run is still producing and recommends surf fishing with clams as the most reliable method right now — early-morning and evening windows along bay shorelines will outperform midday slack-water periods as summer heat builds.

Bluefish and black drum round out the bay picture. Grumpys' recent "Drum, Bass, Blues and a New Player" report suggests multiple species are actively in the mix this week. Blue Chip Sportfishing (NJ) also notes that shark action has "busted wide open" off the NJ coast, with mako sharks appearing on recent charters — a reminder that the bay mouth and nearshore grounds are holding bigger predators worth targeting for those running longer trips. For the weekend, focus on moving tides, work channel drops for fluke, and keep a clam rig ready for any striper opportunity at first light.

Context

The third week of June is historically one of the most dynamic transition periods for Delaware Bay fishing. The spring striper migration that peaks through May and into early June typically begins to ebb as fish push north or settle into summer holding stations along the bay's deeper channel structure. On The Water's June 19 migration update confirms that shift is now underway, with bigger bass concentrating around baitfish schools rather than holding in traditional spring surf zones — a pattern that aligns precisely with what Delaware Bay anglers expect at this point in the season.

Fluke appear to be arriving on a normal schedule. Summer flounder typically begin showing strongly in Delaware Bay tributaries and channel edges from early June onward as water temperatures climb through the 60°F threshold. The improvement flagged by OTW Northern New Jersey on June 18 tracks that standard arrival window. Capt Ron's Atlantic Highlands NJ documented the temperature trajectory this month — a climb from 56°F to 61°F — which is exactly the warm-up that historically flips the bay fluke bite from scattered shorts to keepers in the box.

Black drum, which move through Delaware Bay in late spring and early summer, appear to still be in the picture per Grumpys Tackle (NJ)'s recent report. Historically they peak in May and taper through June; a continued presence now suggests this season's run has carried some staying power into the later part of the month.

One honest caveat: no buoy or gauge data was available for the Delaware Bay NJ side this cycle, and the coastal NJ intel referenced here — from OTW Northern New Jersey, Fishermans HQ LBI, and Capt Ron's Atlantic Highlands — comes primarily from Atlantic-facing and Sandy Hook-area waters rather than the bay itself. Inner bay reaches near Salem or Cumberland counties often run warmer and calmer. A call to a local Cape May County tackle shop before launching is worth the few minutes.