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Best summer flounder (fluke) lakes in Massachusetts

28 Massachusetts waters hold summer flounder (fluke), 28 mapped with real state-agency depth surveys. Ranked below by size and depth-data quality — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. The northeast's doormat ambusher — flat on the sand along channel edges, eating anything drifted past on a moving tide.

1. Buzzards Bay — 146 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #1: survey-backed contours receive the ranking's data-quality boost · 5 public access sites
2. Plymouth Bay — 66 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #2: survey-backed contours receive the ranking's data-quality boost · 1 public access site
3. Plymouth Harbor — 37 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #3: survey-backed contours receive the ranking's data-quality boost · 1 public access site
4. Nantucket Harbor — 42 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #4: survey-backed contours receive the ranking's data-quality boost · 1 public access site
5. Duxbury Bay — 34 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #5: survey-backed contours receive the ranking's data-quality boost · 1 public access site
6. Edgartown Harbor — 38 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #6: survey-backed contours receive the ranking's data-quality boost · 1 public access site
7. Sippican Harbor — 25 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #7: survey-backed contours receive the ranking's data-quality boost · 1 public access site
8. Hyannis Harbor — 26 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #8: survey-backed contours receive the ranking's data-quality boost · 1 public access site
9. Acushnet River — 53 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #9: survey-backed contours receive the ranking's data-quality boost · 1 public access site
10. Centerville Harbor — 25 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #10: survey-backed contours receive the ranking's data-quality boost · 1 public access site
11. Chatham Harbor — 45 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #11: survey-backed contours receive the ranking's data-quality boost · 1 public access site, 1 carry-in or shore-oriented
12. Pleasant Bay — 24 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #12: survey-backed contours receive the ranking's data-quality boost · 1 public access site
13. Vineyard Haven Harbor — 45 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #13: survey-backed contours receive the ranking's data-quality boost · 1 public access site
14. Madaket Harbor — 24 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #14: survey-backed contours receive the ranking's data-quality boost · 1 public access site
15. Nasketucket Bay — 22 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #15: survey-backed contours receive the ranking's data-quality boost · 1 public access site
16. Lagoon Pond — 41 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #16: survey-backed contours receive the ranking's data-quality boost · 1 public access site
17. Menemsha Bight — 43 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #17: survey-backed contours receive the ranking's data-quality boost · 1 public access site
18. Warren Cove — 39 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #18: survey-backed contours receive the ranking's data-quality boost · 1 public access site
19. Stage Harbor — 21 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #19: survey-backed contours receive the ranking's data-quality boost · 1 public access site
20. Menemsha Pond — 27 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #20: survey-backed contours receive the ranking's data-quality boost · 1 public access site
21. Clarks Cove — 25 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #21: survey-backed contours receive the ranking's data-quality boost · 1 public access site
22. Little Pleasant Bay — 18 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #22: survey-backed contours receive the ranking's data-quality boost · 1 public access site
23. Aucoot Cove — 22 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #23: survey-backed contours receive the ranking's data-quality boost · 1 public access site
24. Cuttyhunk Harbor — 32 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #24: survey-backed contours receive the ranking's data-quality boost · 1 public access site
25. Pocasset Harbor — 22 ft max · survey depth data · Striped Bass, Summer Flounder (Fluke), Bluefish, Black Sea BassWhy #25: survey-backed contours receive the ranking's data-quality boost · 1 public access site

…plus 3 more Massachusetts waters holding summer flounder (fluke).

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When to fish summer flounder (fluke) in Massachusetts

• Spring 5–25 ft — Fish move in from the ocean through inlets — drift bucktails along back-bay channel edges as water warms.
• Summer 8–35 ft — The classic drift: bucktail + strip bait bounced along sand next to structure, channel edges and lumps.
• Fall 12–45 ft — Fish stack at inlet mouths and deep channels before sliding offshore — the biggest fish of the year eat now.
• Winter 20–60 ft — Most fish winter offshore; a few holdovers sit in the deepest bay holes — a slow bottom rig on mild afternoons.

Also in Massachusetts: best largemouth bass lakes · best smallmouth bass lakes · best northern pike lakes · best crappie lakes · best bluegill lakes · best rainbow trout lakes · best striped bass lakes · best yellow perch lakes · best common carp lakes · best brown trout lakes · best brook trout lakes · best chain pickerel lakes · best rock bass lakes · best white perch lakes · best pumpkinseed lakes · best brown bullhead lakes · best bluefish lakes · best black sea bass lakes · best tautog (blackfish) lakes · best atlantic mackerel lakes · best atlantic cod lakes

Summer Flounder (Fluke) elsewhere: New York · Connecticut · New Jersey · Rhode Island