Waterlands

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Summer flounderShoulder season

Bay · Massachusetts

Island End River

42.39°N · 71.05°W · Bay · Boston Harbor

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Best score today · 8 AM · Summer flounder

76/100Great
Now
544 PM EDT
Best window
4-10 PMFlood tide
Tide now
Flooding4.2 ft ▲

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

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24-hour conditions · rolling from now

Conditions · 4 PM · now

Time4PNOW
Score54Good
Tide4.2 ft ▲Flooding
CurrentSlack0.0 kn
Wind6 kn ENEgusts 18 · steady
Air temp65°Mild
WeatherMostly cloudy67% cloud
Water64°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

Island End River

Depth
5-50 ftDrop-off
Structure
Bay · Inner · ProtectedBay · drop-off
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 Island End River

Island End River is a bay in Boston Harbor, Massachusetts. Depth is 5-50 ft, with a drop-off. Its profile reads bay, inner water and protected.

Waterlands scores 10 species here; the best right now are scup, Atlantic cod and black sea bass. It is peak season now for scup, Atlantic cod, black sea bass and bluefish, and shoulder season for tautog and summer flounder. Scup peak from June through September. Atlantic cod peak from May through June and from September through October. Black sea bass peak from June through July and in 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.
Scup
Scup school over hard and mixed bottom, rock piles, mussel beds, piers and jetties, usually in 10 to 60 feet of water. Fish a high-low rig with small hooks and squid or clam strips on the bottom, and chum with clam to hold a school under the boat. If nothing bites within 15 minutes, move to the next piece of structure.
Atlantic cod
Cod hold near coarse, rocky bottom on ledges, banks and wrecks, commonly from 80 to 300 feet in the Gulf of Maine. Drift over the structure with a diamond or cod jig and a teaser fly above it, keeping the jig within a few feet of bottom, or fish clams on a high-low rig. Check the stock area and season before keeping one, because most of the year cod must be released.

Nearby spots

Other spots within an easy run

  • Boston Inner Harbor

    Channel · 0.6 mi

    74
    Top: ScupPeak season
    • Scup 74
    • Black sea bass 72
    • Atlantic cod 71

    6 kt ENEH 8:08 PM · 9.1 ftL 2:35 AM · 1.6 ft

  • Chelsea River

    Bay · 0.7 mi

    74
    Top: ScupPeak season
    • Scup 74
    • Black sea bass 72
    • Atlantic cod 71

    6 kt ENEH 8:08 PM · 9.1 ftL 2:35 AM · 1.6 ft

  • Little Mystic Channel

    Channel · 0.6 mi

    71
    Top: ScupPeak season
    • Scup 71
    • Black sea bass 70
    • Striped bass 68

    6 kt ENEH 8:08 PM · 9.1 ftL 2:35 AM · 1.6 ft

  • Fort Point Channel

    Channel · 2.3 mi

    68
    Top: Black sea bassPeak season
    • Black sea bass 68
    • Scup 67
    • Striped bass 67

    8 kt ENEH 8:08 PM · 9.1 ftL 2:34 AM · 1.6 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.