August 2025 — Ocean City MD: White Marlin Open August 3-8, Canyon Season at Peak. August is a peak summer month with water in the 74-80°F range — OFFSHORE peak — white marlin, yellowfin, mahi; cobia (lower bay/CBBT). Here’s the full breakdown of what’s biting, where to fish, and the most productive tactics.
What’s Biting — August 2025
Primary targets this month: Marlin, Tuna, Mahi, Flounder.
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.
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.
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.
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.
Water Conditions & Patterns
Water temperatures are running 74-80°F. Offshore peak — white marlin, yellowfin, mahi; cobia (lower bay/cbbt). 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.
August Outlook
Peak summer — offshore prime (canyon billfish, deepwater snapper); inshore challenging in 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 →
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