Baltimore Canyon Marine Forecast
Updated Fri Sep 11, 2026
A weekend of caution: crossed seas and chop persist
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Marine Forecast for Baltimore Canyon Sep 11–13, 2026
📋 A weekend of caution: crossed seas and chop persist
Winds stay light at 6-14 knots from the NNE with gusts to 18 knots, but for about 7 hours an SSW swell crosses the NNE wind-wave, creating a confused, uncomfortable cross-sea with no clean heading. Otherwise fine 2.8-3.7 feet seas at 5-second periods keep this a caution day.
ESE winds run 9-17 knots with gusts to 22 knots, whipping up steep, choppy wind-wave seas of 2.6-3.5 feet at short 5-second periods for roughly 17 hours. Waves ease briefly midday, but the persistent chop from the wind makes for a bouncy, tiring ride overall.
SW winds of 10-14 knots with gusts to 19 knots bring 0.53in of rain and a steep, choppy wind-wave stretch for about 3 hours plus a 9-hour confused cross-sea where SSE swell crosses SW wind-wave, producing jumbled, uneven motion. Caution advised despite otherwise moderate 2.8-3.7 feet seas.
Friday 12:00 AM to 11:00 AM is the pick, with light 6-14 knots NNE winds and 2.8-3.7 feet seas at 5-second periods from the SSE, though a crossing swell keeps motion slightly awkward.
Recent days at Baltimore Canyon
Today’s Water at Baltimore Canyon
Sea surface temperature and chlorophyll around Baltimore Canyon, imaged fresh every morning. Water at the star is 76.6°F today, and chlorophyll of 0.19 mg/m³ reads as blue-green transition water at the spot.
Imagery: Sep 10, 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 Baltimore Canyon
Baltimore Canyon is one of the premier offshore canyons on the Mid-Atlantic shelf, cutting into the edge roughly 60 nautical miles off Ocean City, Maryland and Cape May, New Jersey. Where the bottom drops away at the shelf break, warm water and bait stack up — and with them blue and white marlin, bigeye and yellowfin tuna, and dolphin. It's the water the White Marlin Open and the MidAtlantic tournament fleets run to.
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 Baltimore 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 to the Baltimore is commonly 60 to 75 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 coastal waters forecast and marine warnings before you leave the dock.
Baltimore Canyon forecast FAQ
How is the sea at Baltimore Canyon today?
As of Sep 11, 2026, the SeaLegs AI verdict for Baltimore Canyon is CAUTION. Winds stay light at 6-14 knots from the NNE with gusts to 18 knots, but for about 7 hours an SSW swell crosses the NNE wind-wave, creating a confused, uncomfortable cross-sea with no clean heading. Otherwise fine 2.8-3.7 feet seas at 5-second periods keep this a caution day.
How far offshore is Baltimore Canyon?
Baltimore Canyon lies roughly 60 nautical miles off Ocean City, Maryland and Cape May, New Jersey, at the edge of the continental shelf. Depending on your inlet and cruise speed, that's commonly a 60-to-75-mile run each way, with no shelter past the shelf.
What fish does Baltimore Canyon hold?
The shelf-break canyon concentrates blue and white marlin, bigeye and yellowfin tuna, and dolphin along the warm temperature edge — which is why it's the centerpiece of tournaments like the White Marlin Open and the MidAtlantic.
How often is this Baltimore 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.
Can I get a forecast like this for my own spot?
Yes. In the free SeaLegs AI app you can drop a pin on any spot on Earth — the Baltimore, the Poor Man's, or your own canyon numbers — and get the same AI-rated marine forecast, plus fishing reports and trip planning.
What is the water temperature at Baltimore Canyon today?
As of Sep 10, 2026, the satellite-derived sea surface temperature at Baltimore Canyon is about 76.6°F, with chlorophyll around 0.19 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.
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