Salt water depth chart
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83,973-acre Galway Bay. Central West saltwater fishing map with official INFOMAR survey bathymetry, measured-cell fishing spots, official fish evidence, seasonal forage guidance, access context and current-rule links. The central west trip-scale survey reach of Galway Bay, retaining only official survey-backed seabed cells that pass the Ireland release gates. The water tops out around 203 ft. The depth chart comes from INFOMAR (Geological Survey Ireland and Marine Institute) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
The drawn water covers 83,990 acres wrapped in 65.3 miles of bank. With a 1.6 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 3% of this chart. The basin spans about 22.9 mi end to end and 11.7 mi across at its widest. If the bite dies, Galway Bay - Aran East South is 11 mi to the southwest.
Marine Institute spawning, nursery, observation and range layers support the principal surveyed pelagic and groundfish. IFI's national and regional sea-angling publications support additional habitat-compatible recreational targets. This is occurrence and search guidance, not equal abundance, a section-level population estimate or a promised catch. The roster may combine exact-water monitoring with habitat-filtered official regional evidence; it does not imply that every species is equally abundant throughout the mapped section.
| Species | Evidence basis | Count / date |
|---|---|---|
| Mackerel (Atlantic Mackerel) | official species listing | — |
| Pollack (Atlantic Pollock) | official species listing | — |
| Coalfish (Saithe (Coalfish)) | official species listing | — |
| Haddock (Haddock) | official species listing | — |
| Whiting (Whiting) | official species listing | — |
| Cod (Atlantic Cod) | official species listing | — |
| Plaice (European Plaice) | official species listing | — |
| Flounder (European Flounder) | official species listing | — |
| Thornback ray (Thornback Ray) | official species listing | — |
| Brill (Brill) | official species listing | — |
| Ling (Ling) | official species listing | — |
| Bass (European Seabass) | official species listing | — |
| Garfish (Garfish) | official species listing | — |
Official species-evidence source.
In spring, atlantic mackerel run shallow here, mostly 5 to 45 ft. Summer pushes them deeper, 15 to 80 ft, and winter fish settle into 30 to 120 ft. Sharp break is the standout, a drop-off at roughly 97 ft, rated good for winter atlantic mackerel. Time it for early morning and the evening. You won't need more than a feather rig or a small vertical jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | Shoreline point (17 ft) | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | INFOMAR measured current seam (91 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Shoreline point (17 ft) | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | Sharp break (97 ft) | Small deep jig |
In spring, atlantic pollock run shallow here, mostly 8 to 100 ft. Midsummer fish sit out in 12 to 150 ft before dropping to 32 to 203 ft for winter. Summer atlantic pollock concentrate at Shoreline point, a prime-rated point around 17 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a surface plug or a baitfish swimbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 100 ft | dawn & dusk | Shoreline point (17 ft) | Sandeel-pattern lure, Soft-plastic shad |
| Summer | 12 to 150 ft | dawn & dusk | Shoreline point (17 ft) | Surface plug, Baitfish swimbait |
| Fall | 15 to 160 ft | dawn | Shoreline point (17 ft) | Metal jig, Minnow plug |
| Winter | 32 to 203 ft | midday | Sharp break (97 ft) | Slow metal jig, Weighted soft plastic |
Early season saithe (coalfish) use the shallows, holding in 15 to 160 ft. Expect a summer slide to 20 to 203 ft, then a winter hold in 29 to 203 ft. Put INFOMAR measured current seam first on the milk run — a current seam near 91 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a speed jig or a heavy paddletail and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 160 ft | dawn & dusk | INFOMAR measured current seam (91 ft) | Slim metal jig, Paddletail |
| Summer | 20 to 203 ft | dawn & dusk | Sharp break (97 ft) | Speed jig, Heavy paddletail |
| Fall | 18 to 203 ft | dawn & dusk | INFOMAR measured current seam (91 ft) | Metal jig, Baitfish swimbait |
| Winter | 29 to 203 ft | midday | Deepest basin (203 ft) | Heavy vertical jig |
When the water first warms, haddock slide up into 32 to 203 ft. There's no big seasonal slide here — summer means 38 to 203 ft, winter 36 to 203 ft. If you only fish one area, make it Deepest basin: a deep basin around 203 ft that scores prime in spring. In summer the feeding windows fall in early morning. Keep a compact metal jig or a bottom rig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 32 to 203 ft | dawn | Deepest basin (203 ft) | Small bottom jig, Beaded trace |
| Summer | 38 to 203 ft | dawn | Deepest basin (203 ft) | Compact metal jig, Bottom rig |
| Fall | 35 to 203 ft | midday | Deepest basin (203 ft) | Small vertical jig |
| Winter | 36 to 203 ft | midday | Deepest basin (203 ft) | Deep bottom jig |
When the water first warms, whiting slide up into 15 to 55 ft. By summer they slide out to 20 to 70 ft, and by winter most fish are in 15 to 70 ft. In summer the feeding windows fall in early morning. Keep a small vertical jig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 55 ft | dawn & dusk | open water | Small silver jig, Two-hook feather rig |
| Summer | 20 to 70 ft | dawn | open water | Small vertical jig |
| Fall | 10 to 60 ft | dusk | open water | Small silver jig, Sparse feather rig |
| Winter | 15 to 70 ft | dusk | open water | Compact vertical jig |
In spring, atlantic cod run shallow here, mostly 20 to 100 ft. Midsummer fish sit out in 45 to 180 ft before dropping to 46 to 203 ft for winter. Winter atlantic cod concentrate at Deepest basin, a prime-rated deep basin around 203 ft. Fish it in early morning and you'll meet the bite. You won't need more than a heavy metal jig or a large soft-plastic jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 20 to 100 ft | dawn | Sharp break (97 ft) | Diamond jig, Heavy bucktail |
| Summer | 45 to 180 ft | dawn | Sharp break (97 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 25 to 140 ft | dawn | Sharp break (97 ft) | Diamond jig, Bucktail with teaser |
| Winter | 46 to 203 ft | midday | Deepest basin (203 ft) | Heavy vertical jig |
Galway Bay - Central West also holds european plaice (6 to 40 ft in summer), european flounder (6 to 35 ft in summer), thornback ray (10 to 65 ft in summer), brill (6 to 50 ft in summer), ling (34 to 203 ft in summer), european seabass (2 to 30 ft in summer), garfish (2 to 20 ft in summer). Pick any of them on the map above for rated spots and bait picks.
The chart marks 7 structure features on Galway Bay - Central West; the deepest is Deepest basin at about 203 ft.
The complete Marine Institute Fishing Ports layer returned no port point inside this operational section. DepthScout does not substitute a nearby road, beach or community slipway as verified public fishing access; confirm legal access, parking, tides and local restrictions before visiting.
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Ireland waters are set by the Inland Fisheries Ireland (current sea-angling regulations) — and special regulations can apply to Galway Bay - Central West specifically, so confirm the current rules before you fish. Check the current national and water-specific rules before every trip, including bass measures, the 2026 recreational pollack controls, salmon and sea-trout licences and river-specific status, protected areas, harbour directions, private land and local signs. A mapped fishing port or measured seabed feature is not permission to fish, park, launch or enter a working harbour.
Check the official Ireland fishing regulations →
Department of Climate, Energy and the Environment (2026 salmon and sea-trout status) →
Check special-area and water-specific rules →
Check official shore-access information →
Galway Bay - Central West is about 203 ft (62 m) deep at its deepest point. The depth chart comes from INFOMAR (Geological Survey Ireland and Marine Institute) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Marine Institute and Inland Fisheries Ireland informs the atlantic mackerel, atlantic pollock, saithe (coalfish), haddock, whiting, atlantic cod, european plaice, european flounder, thornback ray, brill, ling, european seabass, garfish roster for Galway Bay - Central West. The mixed roster combines exact-water records where available with habitat-filtered regional evidence; not every species is documented at this exact water, and it is not a promise of equal abundance or a catch on a particular trip.
Shoreline point is the top-rated area: a point in about 17 ft of water that rates prime for atlantic pollock in summer. Scroll up to the map for the complete spot list by species and season.
For atlantic mackerel, 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 Galway Bay - Central West is regulated by the Inland Fisheries Ireland (current sea-angling regulations). Check the official Ireland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Galway Bay - Aran East South 11 mi · Galway Bay - Central East 12 mi · Galway Bay - Aran East North 14 mi · Galway Bay - Inner 18 mi · Galway Bay - Aran West South 21 mi · Galway Bay - Aran West North 23 mi · Shannon Estuary - Lower 36 mi · Shannon Estuary - Middle East 36 mi · Shannon Estuary - Middle West 37 mi · Killary Harbour - Middle 37 mi · Shannon Estuary - Mouth North 38 mi · Shannon Estuary - Inner 42 mi
See how Galway Bay - Central West stacks up: best european flounder lakes in Ireland · best garfish lakes in Ireland · best european seabass lakes in Ireland · best european plaice lakes in Ireland
Browse all Ireland fishing maps. See every water on DepthScout. Bathymetry credit: INFOMAR (Geological Survey Ireland and Marine Institute) INFOMAR All Survey bathymetry mosaic (Source-survey vertical references retained in the INFOMAR All Survey mosaic; 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.