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312-acre Stonington Harbor fishing map with NOAA BlueTopo survey contours (100% measured, 100% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 19 ft. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The channels, holes and drop-offs come from the source data, not a distance-from-shore model. What the data behind the map says about each species, season by season:
The drawn water covers 311 acres wrapped in 6.3 miles of bank, with a single island in the mix. The 2.5 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The shallow band under 15 ft claims about 90% of the surface — that's where the groceries are. End to end it runs roughly 1.4 mi, about 0.7 mi across. Its nearest charted neighbour, Mystic Harbor, is 3 mi to the west.
The spring pattern is a shallow one: striped bass in 5 to 19 ft. The depth story barely changes: 6 to 19 ft through summer, 6 to 19 ft in winter. The spot to know is Surveyed channel edge, a drop-off in about 9 ft of water that rates prime for striped bass in summer. Plan around early morning and the evening in the warm months. Summer baits: a flutter spoon (deep) or an umbrella rig (trolled) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 19 ft | dawn & dusk | Surveyed channel edge (9 ft) | Bucktail jig + trailer, Walking topwater (dawn) |
| Summer | 6 to 19 ft | dawn & dusk | Surveyed channel edge (9 ft) | Flutter spoon (deep), Umbrella rig (trolled) |
| Fall | 5 to 19 ft | dawn & dusk | Surveyed channel edge (9 ft) | Topwater walker, Jerkbait |
| Winter | 6 to 19 ft | midday | Surveyed channel edge (9 ft) | Alabama rig (slow), Flutter spoon |
Spring bluefish on Stonington Harbor hold shallow, usually 3 to 19 ft. Depth-wise the year is flat: 3 to 19 ft in summer, 6 to 19 ft once it turns cold. Put Surveyed channel edge first on the milk run — a drop-off near 9 ft that grades prime for summer. The feeding windows run early morning and the evening. The summer box starts with a popper (early/late) or a metal jigs in the rips.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 19 ft | dawn & dusk | Surveyed channel edge (9 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 3 to 19 ft | dawn & dusk | Surveyed channel edge (9 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 2 to 19 ft | dawn & midday | Surveyed channel edge (9 ft) | Pencil popper, Big metal |
| Winter | 6 to 19 ft | midday | Surveyed channel edge (9 ft) | Metal jig worked slow (southern waters) |
In spring, summer flounder (fluke) run shallow here, mostly 4 to 19 ft. Summer keeps them at 4 to 19 ft, and they winter in 6 to 19 ft. Summer summer flounder (fluke) concentrate at Surveyed channel edge, a prime-rated drop-off around 9 ft. Fish it in midday and early morning and you'll meet the bite. You won't need more than a bucktail (1-3 oz by drift speed) or a gulp grub on jighead most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 19 ft | midday & dawn | Surveyed channel edge (9 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 4 to 19 ft | midday & dawn | Surveyed channel edge (9 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 5 to 19 ft | midday | Surveyed channel edge (9 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 6 to 19 ft | midday | Surveyed channel edge (9 ft) | Slow bottom rig + strip |
The spring pattern is a shallow one: black sea bass in 5 to 19 ft. The depth story barely changes: 5 to 19 ft through summer, 6 to 19 ft in winter. The spot to know is NOAA charted underwater rock, a rock pile in about 5 ft of water that rates prime for black sea bass in spring. Plan around midday and early morning in the warm months. Summer baits: a bucktail + grub or a diamond jig + squid teaser gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 19 ft | midday & dawn | NOAA charted underwater rock (5 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 5 to 19 ft | midday & dawn | NOAA charted underwater rock (5 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 5 to 19 ft | midday | NOAA charted underwater rock (5 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 6 to 19 ft | midday | NOAA charted underwater rock (8 ft) | Heavy hi-lo rig on deep wrecks |
Come spring, look for tautog (blackfish) tight to the bank in 4 to 19 ft. Through summer count on 5 to 19 ft; the winter hold is 6 to 19 ft. Start at Dangerous NOAA charted wreck. It's a wreck holding about 4 ft of water and rates prime come spring. Prime time lands in early morning. A 1/2-1 oz tog jig + crab is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 19 ft | midday & dawn | Dangerous NOAA charted wreck (4 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 5 to 19 ft | dawn | Dangerous NOAA charted wreck (13 ft) | 1/2-1 oz tog jig + crab |
| Fall | 4 to 19 ft | midday | Dangerous NOAA charted wreck (4 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 6 to 19 ft | midday | Dangerous NOAA charted wreck (13 ft) | Heavy jig + crab on deep structure |
Structure-wise the chart holds 22 features, led in depth by Dangerous NOAA charted wreck at roughly 13 ft.
Access data: Connecticut DEEP — State Boat Launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Connecticut waters are set by the Connecticut DEEP (marine fishing) — and special regulations can apply to Stonington Harbor specifically, so confirm the current rules before you fish.
Check the official Connecticut fishing regulations →
Stonington Harbor is about 19 ft (6 m) deep at its deepest point. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The contours reflect measured and quality-assessed source depths.
Anglers target striped bass, bluefish, summer flounder (fluke), black sea bass, tautog (blackfish) on Stonington Harbor.
Surveyed channel edge is the top-rated area: a drop-off in about 9 ft of water that rates prime for summer flounder (fluke) in summer. The interactive chart above rates every spot for each species and season.
For striped bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Stonington Harbor is regulated by the Connecticut DEEP (marine fishing). Check the official Connecticut regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Mystic Harbor 3 mi · Mystic River - Reach 1 of 2 3 mi, CT/RI/MA · Pawcatuck River 4 mi, RI/CT · Fishers Island Sound 4 mi · Chapman Pond 7 mi, RI · Long Pond 7 mi · Lantern Hill Pond 8 mi · New London Harbor 9 mi · Thames River 10 mi · Lake Of Isles 10 mi · Wyassup Lake 11 mi · Avery Pond 11 mi
See how Stonington Harbor stacks up: best striped bass lakes in Connecticut · best summer flounder (fluke) lakes in Connecticut · best bluefish lakes in Connecticut · best black sea bass lakes in Connecticut
Browse all Connecticut fishing maps or see every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 100% measured, 0% source-interpolated). How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.