July 2025 — Ocean City MD: Flounder Peak, White Marlin Open Approaching, Canyon at Full Production. July is a summer month with water in the 72-78°F range — flounder, sea bass, croaker; canyon tuna and white marlin. Here’s the full breakdown of what’s biting, where to fish, and the most productive tactics.
What’s Biting — July 2025
Primary targets this month: Flounder, Tuna, Marlin, Mahi.
Flounder
Flounder around Sinepuxent Bay, Isle of Wight Bay, the Thorofare, the OC Inlet, and the bayside channels. Bucktails with Gulp! trailers, live mud minnows, finger mullet on Carolina rigs. Slow on bottom.
Tuna
Yellowfin tuna on the canyons (Norfolk, Washington, Poormans) 50-70 miles offshore — yellowfin summer, bluefin spring and fall. Chunking (cut sardine, butterfish) at anchor, live bait drifting, or trolled feathers and cedar plugs. Heavy stand-up tackle (50-80 lb class) for the bigger grades.
Marlin
Marlin (primarily blue and white) on the canyons — white marlin is the OC headline, big tournament in early August. Trolled skirted lures (Black Bart, Joe Yee), rigged ballyhoo, or pitched live bait. White marlin is the smaller, schooling species; blues are the trophies.
Mahi
Peak mahi season on the canyons and weed lines 30-60 miles offshore in summer. Look for weed lines, color changes, floating debris, and frigatebirds. Trolled ballyhoo with skirts (blue/white, pink/white), or live pilchards pitched to schools. Bull and cow pairs in spring; schoolies (3-12 lb) summer.
Water Conditions & Patterns
Water temperatures are running 72-78°F. Flounder, sea bass, croaker; canyon tuna and white marlin. OC Inlet moves enormous water; strongest fishing on outgoing for bait and predators staging at the jetties. Bayside flounder fishing peaks on moving tide of late spring through summer.
Check the NOAA marine forecast and tide charts before launching. Wind direction often matters more than wind speed for inshore fishing — clean water beats churned water nine times out of ten.
Tactics & Tackle for This Month
- Canyon offshore peak. White marlin, yellowfin, mahi 50-70 miles offshore — long days but lights-out fishing.
- Cobia (Lower Bay). Sight-fishing the CBBT and Cape Charles buoy lines — peak window.
July Outlook
Summer pattern locked in — dawn/dusk inshore, deep offshore, manage heat.
Regulations Reminder
Flounder: 14″ minimum, 5 per day (FL). State-specific elsewhere. Marlin: HMS permit required. Blue 99″ LJFL minimum; white 66″ LJFL minimum. Most tournaments catch-and-release. Always verify current state regulations before each trip — slots, bag limits, and seasons change.
Local Resources
Bait & Tackle: Oyster Bay Tackle (Ocean City, 410-524-3433); Akers (Ocean City); Sunset Marina pier shop; Bahia Marina.
Public Boat Ramps: Oceanic Pier ramp, Public Landing (south of OC), Sunset Marina, Bahia Marina (private launch fee).
Charter Fishing: $450-$700 inshore; $1,200-$2,500 offshore canyons; $700-$1,100 nearshore.
More Ocean City MD Resources
Ocean City MD Fishing Guide · Ocean City MD Seasonal Calendar · All Ocean City MD reports →
Reports updated every Thursday on fishing.digital.
Where to focus this month
July is peak summer in Ocean City, and the fishery is firing on every front. Flounder are at their best in Sinepuxent and Isle of Wight bays, the Thorofare, the OC Inlet, and the bayside channels — drift bucktails tipped with Gulp, live mud minnows, or finger mullet on the moving tide and cover water for the keepers. The nearshore wrecks and reefs hold black sea bass and spadefish for a steady, kid-friendly day close to home.
The canyon and the White Marlin Open
Offshore, the canyons — Norfolk, Washington, Poormans, and the rest — are in full production for yellowfin tuna, mahi, and white and blue marlin. The White Marlin Open in early August looms over the month, and the fleet spends July dialing in the trolling spreads and locating the fish. Trolled ballyhoo and skirted lures cover water for billfish and tuna, while chunking at anchor on the canyon edges fills the box with yellowfin. Pick the calm weather windows for the 50-to-70-mile run.
The month ahead
August brings the White Marlin Open and the height of the canyon season, with the flounder fishing holding strong in the bays. July is the time to get the offshore program tuned and to take advantage of the peak flounder bite. Carry plenty of water and watch the afternoon thunderstorms that build over the bays this time of year.