Delaware Bay flounder bite holds strong into August push

What's biting

What's next

Tonight's full moon will push stronger tidal swings through Delaware Bay over the next few days, and that's typically when back-bay flounder fishing gets its best push of the month. Fin-Atics already has the bite tied to the incoming tide with live minnows and squid strips, so anglers should look to fish the top of the incoming and the first hour of the outgoing around the moon-driven peak flows this week and into the weekend.

On the ocean side, Hands Too Bait and Tackle's Cape May report has keeper flounder amassing by the bridges and around the Cape May Jetty tips, alongside good numbers of large triggerfish that anglers are having to fish through to reach sheepshead. Expect that pattern to hold or build as water temperatures stay in their summer range; sand fleas and cut strip baits remain the go-to combination there.

Croakers are stacked along the Delaware Bay beaches on clam and squid bits, and that action typically strengthens through early August as the run continues. Kingfish were slow through the middle of July per the same Cape May report, but they're still mixed in and tend to pick up as summer progresses, so a modest uptick is reasonable to expect over the next couple of weeks.

Further out, deeper reef structure like Reef Site #11 and the Old Grounds continues to be the more consistent bet for bigger flounder, with Hands Too Bait and Tackle noting fish spitting up sand eels, a signal to lean on longer, thinner bait profiles (6-inch Gulp, mackerel strips) rather than bulkier baits. Pier 47 Marina echoes the same pattern, with limits to 7 pounds coming from Reef Site #11 on larger strip baits and Gulp.

Boaters ranging further offshore should note the White Marlin Open runs August 3-8 out of Ocean City, MD, and South Jersey Marina is already reporting 40- to 80-pound bluefin on ballyhoo and spreader bars at the East Lump, a sign offshore pelagic action is building as the tournament window approaches.

The biggest planning point for the next few days: work the moon-driven tide peaks for back-bay flounder, and expect the shorts-to-keepers ratio in the back bays to keep improving as August opens, per Boulevard Bait and Tackle's read that the season's largest back-bay doormat typically shows in August.

Context

Late July into August is prime time for Delaware Bay's back-bay flounder fishery, and the intel here suggests this season is running on a typical schedule rather than early or late. Boulevard Bait and Tackle's report of a 31-inch, nearly 11-pound doormat caught on a bucktail and Gulp Shrimp, paired with their read that the largest back bay fish of the season will be caught in August, matches the normal late-summer pattern for this fishery, when bigger flatfish move shallower to feed before the fall pullout.

The mix of species reporting in, fluke, sheepshead, triggerfish, croaker, and kingfish, is also typical for a Delaware Bay summer, with the sand-eel forage mentioned by Hands Too Bait and Tackle a normal mid-to-late-summer bait signal that usually holds through August.

There isn't a direct comparative data point in this feed set (no prior-week or prior-year numbers for this specific region) to say definitively whether catch rates are running above or below a typical season, so that comparison should be treated as general seasonal knowledge rather than a sourced fact. What is clear from the shop reports is that the back bay and reef-site bite has been building steadily through July without any reported slowdown, consistent with a normal, on-schedule Delaware Bay summer rather than an early peak or a late start.