Wilmington Canyon Marine Forecast
Updated Sun Sep 20, 2026
Choppy weekend, only a narrow Sunday window works
Drop a pin on any spot in the world — free in the SeaLegs AI app.
Marine Forecast for Wilmington Canyon Sep 19–21, 2026
📋 Choppy weekend, only a narrow Sunday window works
Waves start manageable at 3-5 feet at 5-second periods from the ENE with 12-16 knots ENE wind, but seas turn choppy by late morning and get rough by evening. No settled 12-hour stretch of good conditions exists, so this day is a no-go for a full trip.
Rough, bad seas linger overnight into morning before easing to caution-level chop, then wind and waves settle nicely by afternoon with 8-13 knots SSE wind and 3.5-5 feet seas at 6-second periods from the east. Only the 12:00 PM-1:00 PM window Monday is confirmed all-GO for the full 12-hour trip; avoid the rest of the day.
Mornings look fine with good waves, but a confused cross-sea develops for about 5 hours as ESE swell crosses NE wind-wave, creating awkward, uncomfortable motion with no comfortable heading. Combined with 8-17 knots N wind and gusts to 23 knots, there's no settled 12-hour all-GO stretch, making this a no-go day.
Saturday's midday-into-Monday lull peaks Sunday 12:00 PM to 11:00 PM, when 8-10 knots south-southeast winds and steadier 4 feet seas at 6-second periods from the east make conditions manageable, but only the 12:00 PM to 1:00 PM Monday stretch is a true all-GO window long enough for the full 12-hour trip.
Recent days at Wilmington Canyon
Today’s Water at Wilmington Canyon
Sea surface temperature and chlorophyll around Wilmington Canyon, imaged fresh every morning. Water at the star is 77.1°F today, and chlorophyll of 0.15 mg/m³ reads as blue-green transition water at the spot.
Imagery: Sep 19, 2026 · rebuilt every morning
These charts show you the breaks. DeepCast reads them. A zone-by-zone AI fishing report for these exact waters — temperature edges, color changes, and structure, analyzed together — for $4.99.
Get the AI fishing reportSST and chlorophyll from the SeaLegs AI DeepCast satellite pipeline. Charts are a planning aid — always check the official marine forecast before making the run.
About Wilmington Canyon
Wilmington Canyon notches the shelf edge roughly 75 nautical miles off Indian River Inlet and Ocean City, Maryland, the next canyon north of the Baltimore and a standard run for the Delaware, Maryland and South Jersey fleets. Where the bottom drops away, warm water and bait stack up — and with them yellowfin and bigeye tuna, white marlin, mahi and swordfish, with tilefish on the muddy edges.
At that distance there is no ducking back in when the wind comes up, so the forecast below is built around the two things that decide a canyon trip: wind against current and swell period. Each day gets an honest GO, CAUTION, or NO-GO call — the same AI rating used in the SeaLegs AI app.
Reading conditions at Wilmington Canyon
The canyon sits at the edge of the continental shelf, where offshore swell arrives with nothing to soften it. Short-period seas that feel manageable at the inlet stack up steep over the shelf break, and a blow against the current makes it worse — so weight the swell period as heavily as the height: 5 feet at 12 seconds can be a comfortable ride out, while 4 feet at 5 seconds is a punishing one. The warm shelf-break temperature edge where the fish set up is also where wind-against-current stands the sea up steep.
Plan the whole window, not just the departure. The run out is commonly 70 to 80 nautical miles each way — a long offshore day, often an overnight for the tuna bite — so a forecast that opens calm and builds through the afternoon can close the door on the ride home. Pick the day the window stays open on both ends, and always confirm the official NWS offshore waters forecast and marine warnings before you leave the dock.
Wilmington Canyon forecast FAQ
How is the sea at Wilmington Canyon today?
As of Sep 19, 2026, the SeaLegs AI verdict for Wilmington Canyon is NO-GO. Waves start manageable at 3-5 feet at 5-second periods from the ENE with 12-16 knots ENE wind, but seas turn choppy by late morning and get rough by evening. No settled 12-hour stretch of good conditions exists, so this day is a no-go for a full trip.
How far offshore is Wilmington Canyon?
Wilmington Canyon lies roughly 75 nautical miles off Indian River Inlet, Delaware and Ocean City, Maryland, at the edge of the continental shelf. Depending on your inlet and cruise speed that is commonly a 70-to-80-mile run each way, with no shelter past the shelf.
What is the difference between Wilmington and Baltimore Canyon?
Wilmington is the next canyon north of the Baltimore, and slightly further east. Both are shelf-edge Mid-Atlantic canyons holding the same mix of tuna and billfish; which one a crew runs usually comes down to the inlet they leave from and where the warm edge has set up that week.
What fish does Wilmington Canyon hold?
The shelf-break canyon concentrates yellowfin and bigeye tuna, white marlin, mahi and swordfish along the warm temperature edge, with tilefish on the muddy bottom at the canyon's edges.
How often is this Wilmington Canyon forecast updated?
The forecast on this page is rebuilt every morning from the latest marine model data, and the SpotCast card refreshes live in your browser. The date stamp above the outlook shows exactly when it was last generated.
What do GO, CAUTION, and NO-GO mean?
GO means conditions are favorable for most recreational offshore boats. CAUTION means marginal — manageable for experienced crews in capable vessels, but check the wind, swell period, and timing closely. NO-GO means conditions are hazardous for small craft and the trip is best postponed.
What is the water temperature at Wilmington Canyon today?
As of Sep 19, 2026, the satellite-derived sea surface temperature at Wilmington Canyon is about 77.1°F, with chlorophyll around 0.15 mg/m³ (blue-green transition water). The SST and chlorophyll charts on this page are rebuilt every morning from the SeaLegs AI DeepCast satellite pipeline.
More offshore forecasts
Get this forecast for your own spot
Drop a pin on any spot on planet Earth in the free SeaLegs AI app — AI marine forecasts, fishing reports, and trip planning, rated GO / CAUTION / NO-GO.
📍 Get a Marine Forecast Near You →or download directly: