Waterlands

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Summer flounderShoulder season

Gut · Massachusetts

Black Rock Channel

42.33°N · 70.92°W · Gut · Boston Harbor

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Best score today · 12 AM · Summer flounder

76/100Great
Now
454 PM EDT
Best window
6-8 PMFlood tide
Tide now
Flooding2.6 ft ▲

Data from: NOAA CO-OPS + NDBC + ECMWF + Open-Meteo Marine · Waterlands engine

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24-hour conditions · rolling from now

Conditions · 4 PM · now

Time4PNOW
Score45Good
Tide2.6 ft ▲Flooding
CurrentSlack0.1 kn
Wind11 kn NEgusts 26 · steady
Sea stateModerate3.0 ft · 5 s
Air temp59°Mild
WeatherOvercast89% cloud
Water63°FObserved

Current regulations

What you can keep here today

IN EFFECT NOW

No rule for Summer flounder is on file here yet, so its status is unknown, not closed. Confirm limits with MassDMF before you keep a fish.

Seasonality · 52-week view · this week ringed

When Summer flounder is best here

Shoulder season for Summer flounder · 1 more week at shoulder

Summer flounder season by week of the year. Shoulder season for Summer flounder · 1 more week at shoulder.
  • Peak
  • Shoulder
  • Off
  • Not here
  • This week

Summer flounder in Massachusetts

Spot profile

Black Rock Channel

Depth
20-35 ftSlope
Structure
Channel · Inner · Semi-exposedChannel · slope
Season
Shoulder seasonSummer flounder

NOAA NCEI DEM, sampled Sep 13 on a 3.4 m grid. Depths are feet below NAVD 88, not chart datum (MLLW), so they can differ from a chart by a few feet. Not for navigation.

About this spot

Fishing Black Rock Channel

Black Rock Channel is a gut in Boston Harbor, Massachusetts. Depth is 20-35 ft, with a slope. Its profile reads channel, inner water and semi-exposed.

Waterlands scores 10 species here; the best right now are black sea bass, striped bass and scup. It is peak season now for black sea bass, striped bass, scup and Atlantic cod, and shoulder season for summer flounder and tautog. Black sea bass peak from June through July and in September. Striped bass peak from May through June and from September through October. Scup peak from June through September.

Tackle & technique

Summer flounder
Summer flounder lie half-buried on sand and shell bottom and ambush bait along channel edges, inlet bars and ocean reefs, from a few feet deep in back bays to about 100 feet offshore. Drift with the tide and bounce a bucktail tipped with a squid or fish strip along the bottom. The bigger fish move to ocean reefs and wrecks in late summer, so follow them out.
Black sea bass
Black sea bass hold tight to wrecks, reefs, rock piles and jetties, from 15 feet inshore in late spring to well over 100 feet on offshore wrecks in late fall. Anchor or drift right over the structure and fish a two-hook high-low rig with squid or clam, or bounce a small jig on the bottom. The biggest males sit on the highest relief.
Striped bass
Striped bass feed where moving tide pushes bait past structure: inlets, points, jetties, bridge pilings and rips in the surf, usually in 2 to 40 feet of water. Fish dawn, dusk and night hardest, casting plugs, bucktails and soft plastics or drifting live bunker and eels, and chunk bait on the bottom in current. In midsummer the larger fish drop deeper or feed mostly after dark.

Nearby spots

Other spots within an easy run

  • Great Brewster Spit

    Flat · 0.6 mi

    61
    Top: Striped bassPeak season
    • Striped bass 61
    • Little tunny 57
    • Bluefish 55

    11 kt NEH 9:01 PM · 8.8 ftL 3:24 AM · 1.1 ft

  • False Spit

    Bar · 0.7 mi

    60
    Top: Striped bassPeak season
    • Striped bass 60
    • Atlantic cod 57
    • Little tunny 57

    11 kt NEH 9:01 PM · 8.8 ftL 3:24 AM · 1.1 ft

  • Ram Head

    Bar · 0.6 mi

    58
    Top: Atlantic codPeak season
    • Atlantic cod 58
    • Bluefish 57
    • Haddock 56

    11 kt NEH 9:01 PM · 8.8 ftL 3:24 AM · 1.1 ft

  • Ram Head Flats

    Flat · 0.4 mi

    54
    Top: Black sea bassPeak season
    • Black sea bass 54
    • Striped bass 53
    • Scup 52

    11 kt NEH 9:01 PM · 8.8 ftL 3:24 AM · 1.1 ft

Scores and forecasts are for planning only and can be wrong. Conditions on the water change fast; check the marine forecast before you go. Regulations change during the season, so confirm limits and closures with MassDMF before you keep a fish.