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253-acre Larchmont Harbor fishing map with NOAA BlueTopo survey contours (99.44% measured, 100% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 23 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. Here's the year, species by species, as the scoring engine sees it.
Drawn out, this is 253 acres of water rimmed by 6.9 miles of bank, with 7 islands in the mix. An index of 3.1 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 93% of the surface — that's where the groceries are. Tip to tip the water measures near 1.1 mi with a 0.9-mi widest point. The nearest mapped water is Mamaroneck Harbor, 1 mi to the northeast.
When the water first warms, striped bass slide up into 5 to 20 ft. Summer is a 7 to 23 ft game here, winter a 7 to 23 ft one. Start at Surveyed channel edge. It's a drop-off holding about 16 ft of water and rates good come summer. The feeding windows run early morning and the evening. Keep a topwater walker at low light or a paddletail on a light jig rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Surveyed channel edge (16 ft) | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 7 to 23 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Surveyed channel edge (16 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 7 to 23 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Surveyed channel edge (16 ft) | Pencil popper, Baitfish swimbait |
| Winter | 7 to 23 ft chart-limited; documented 20 to 50 ft | midday | Surveyed channel edge (16 ft) | Slow paddletail, Bucktail near bottom |
Start shallow in spring: bluefish sit in 3 to 20 ft that time of year. Summer pushes them deeper, 4 to 23 ft, and winter fish settle into 7 to 23 ft. The spot to know is Surveyed channel edge, a drop-off in about 16 ft of water that rates good for bluefish in summer. Warm-month bites cluster around early morning and the evening. Throw a popper (early/late) or a metal jigs in the rips until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Surveyed channel edge (16 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 4 to 23 ft chart-limited; documented 5 to 30 ft | dawn & dusk | Surveyed channel edge (16 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 23 ft chart-limited; documented 3 to 25 ft | dawn & midday | Surveyed channel edge (16 ft) | Pencil popper, Big metal |
| Winter | 7 to 23 ft chart-limited; documented 15 to 40 ft | midday | open water | Metal jig worked slow (southern waters) |
When the water first warms, summer flounder (fluke) slide up into 5 to 23 ft. There's no big seasonal slide here — summer means 5 to 23 ft, winter 7 to 23 ft. If you only fish one area, make it Surveyed channel edge: a drop-off around 16 ft that scores prime in summer. In summer the feeding windows fall in midday and early morning. Keep a bucktail (1-3 oz by drift speed) or a gulp grub on jighead rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 23 ft chart-limited; documented 5 to 25 ft | midday & dawn | Surveyed channel edge (16 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 5 to 23 ft chart-limited; documented 8 to 35 ft | midday & dawn | Surveyed channel edge (16 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 6 to 23 ft chart-limited; documented 12 to 45 ft | midday | Surveyed channel edge (16 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 7 to 23 ft chart-limited; documented 20 to 60 ft | midday | Surveyed channel edge (16 ft) | Slow bottom rig + strip |
When the water first warms, black sea bass slide up into 6 to 23 ft. There's no big seasonal slide here — summer means 6 to 23 ft, winter 7 to 23 ft. Start at NOAA charted underwater rock. It's a rock pile holding about 11 ft of water and rates prime come spring. The feeding windows run midday and early morning. Keep a bucktail + grub or a diamond jig + squid teaser rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 23 ft chart-limited; documented 10 to 40 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 6 to 23 ft chart-limited; documented 15 to 60 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 6 to 23 ft chart-limited; documented 20 to 80 ft | midday | NOAA charted underwater rock (11 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 7 to 23 ft chart-limited; documented 40 to 100 ft | midday | NOAA charted underwater rock (11 ft) | Heavy hi-lo rig on deep wrecks |
Spring puts tautog (blackfish) in skinny water — 5 to 23 ft is the zone. Summer fish stay in 7 to 23 ft, and winter fish hold in 7 to 23 ft. NOAA charted underwater rock is the standout, a rock pile at roughly 11 ft, rated prime for spring tautog (blackfish). Plan around early morning in the warm months. A 1/2-1 oz tog jig + crab covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 23 ft chart-limited; documented 5 to 25 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 7 to 23 ft chart-limited; documented 10 to 35 ft | dawn | NOAA charted underwater rock (11 ft) | 1/2-1 oz tog jig + crab |
| Fall | 5 to 23 ft chart-limited; documented 10 to 50 ft | midday | NOAA charted underwater rock (11 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 7 to 23 ft chart-limited; documented 30 to 70 ft | midday | NOAA charted underwater rock (11 ft) | Heavy jig + crab on deep structure |
Come spring, look for scup (porgy) tight to the bank in 5 to 23 ft. Through summer count on 4 to 23 ft; the winter hold is 6 to 23 ft. If you only fish one area, make it NOAA charted underwater rock: a rock pile around 11 ft that scores prime in spring. Best bite is midday and early morning. A hi-lo porgy rig or a micro metal jig is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 23 ft chart-limited; documented 5 to 25 ft | dawn | NOAA charted underwater rock (11 ft) | Small hi-lo rig, Micro jig tipped with bait |
| Summer | 4 to 23 ft chart-limited; documented 6 to 35 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Hi-lo porgy rig, Micro metal jig |
| Fall | 5 to 23 ft chart-limited; documented 8 to 40 ft | midday | NOAA charted underwater rock (11 ft) | Compact vertical jig, Hi-lo rig |
| Winter | 6 to 23 ft chart-limited; documented 12 to 50 ft | midday | NOAA charted underwater rock (11 ft) | Small slow vertical jig |
Larchmont Harbor also holds winter flounder (6 to 23 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 12 features, led in depth by Surveyed channel edge at roughly 16 ft.
Access data: Village of Mamaroneck — adopted comprehensive plan. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for New York waters are set by the New York DEC (saltwater fishing) — and special regulations can apply to Larchmont Harbor specifically, so confirm the current rules before you fish.
Check the official New York fishing regulations →
Larchmont Harbor is about 23 ft (7 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), scup (porgy), winter flounder on Larchmont Harbor. The list combines the water's survey records with habitat-filtered species from broader official evidence; those additions are plausible occurrences, not exact-water abundance or guaranteed catches.
NOAA charted underwater rock is the top-rated area: a rock pile in about 11 ft of water that rates prime for black sea bass in spring. The map above holds the full rated-spot list for every 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 Larchmont Harbor is regulated by the New York DEC (saltwater fishing). Check the official New York regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Mamaroneck Harbor 1 mi · Echo Bay 2 mi · Port Chester Harbor 6 mi · City Island Harbor 6 mi · Eastchester Bay 7 mi · Hempstead Harbor 7 mi · Manhasset Bay 7 mi · Byram Harbor 8 mi, CT · Captain Harbor 8 mi, CT · Indian Harbor 9 mi, CT · Hudson River - Yonkers to Tappan Zee 9 mi · Green Brook Pond 10 mi, NJ
See how Larchmont Harbor stacks up: best striped bass lakes in New York · best summer flounder (fluke) lakes in New York · best winter flounder lakes in New York · best bluefish lakes in New York
Browse all New York fishing maps. See every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 99% measured, 1% 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.