Waterlands

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Summer flounderShoulder season

Channel · Massachusetts

Boston South Channel

42.35°N · 70.92°W · Channel · Boston Harbor

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Best score today · 12 AM · Summer flounder

72/100Great
Now
5412 AM EDT
Best window
12-3 AMEbb tide
Tide now
Ebbing5.4 ft ▼

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

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24-hour conditions

Tuesday, Sep 29 · 3 AM

Time3A
Score61Good
Tide8.0 ft ▼Ebbing
CurrentEbb0.7 kn · toward ENE
Wind8 kn NNWgusts 16 · steady
Sea stateModerate2.3 ft · 6 s
Air temp61°Mild
WeatherOvercast34% chance of rain
Water61°FModel

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.

Source: MassDMF · synced yesterday

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

Boston South Channel

Depth
30-45 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 Boston South Channel

Boston South Channel is a channel in Boston Harbor, Massachusetts. Depth is 30-45 ft, with a slope. Its profile reads channel, inner water and semi-exposed.

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

Nearby spots

Other spots within an easy run

  • Boston North Channel

    Channel · 0.7 mi

    72
    Top: Striped bassPeak season
    • Striped bass 72
    • Black sea bass 65
    • Bluefish 62

    12 kt ENEL 3:23 AM · 1.2 ftH 9:40 AM · 8.5 ft

  • Halftide Rocks

    Bar · 0.8 mi

    69
    Top: Atlantic codPeak season
    • Atlantic cod 69
    • Black sea bass 68
    • Bluefish 67

    12 kt ENEL 3:24 AM · 1.1 ftH 9:38 AM · 8.2 ft

  • Ram Head

    Bar · 1.0 mi

    68
    Top: BluefishPeak season
    • Bluefish 68
    • Striped bass 67
    • Atlantic cod 64

    12 kt ENEL 3:24 AM · 1.1 ftH 9:38 AM · 8.2 ft

  • Devils Back

    Bar · 0.5 mi

    67
    Top: BluefishPeak season
    • Bluefish 67
    • Striped bass 65
    • Atlantic cod 64

    12 kt ENEL 3:24 AM · 1.1 ftH 9:38 AM · 8.2 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.