Salt water depth chart
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17,567-acre Cwb-Ii-1B. North Portugal coastal fishing map with an exact official national water-body boundary, EMODnet 2024 CDI-audited Portuguese hydrographic and research-survey/composite DTM contours, source-assessed fishing spots, official regional fish evidence, seasonal forage guidance, public-access review and current-rule links. Official Portuguese WFD named coastal or transitional assessment water in Northern Portugal Atlantic Coast. This child is clipped to the exact source polygon and a trip-scale ownership window. Coverage classes and uncertainty limits are disclosed; this is a fishing-planning chart, not a navigation chart or catch forecast. The water tops out around 108 ft. The depth chart comes from EMODnet, with national hydrographic source-reference audit bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Cwb-Ii-1B - North draws 17,565 acres inside 21.3 miles of shoreline. A shoreline index of 1.1 says round and simple: fish relate to depth changes here, not shoreline features. About 8% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 6 mi of water from one end to the other, 5.9 mi at the beam. Closest neighbour on DepthScout: Cwb-Ii-1A - South, 8 mi north of here.
Occurrence evidence does not promise a catch or establish that retention is legal. Current seasons, closures, protected species, gear rules and local restrictions always control. 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 |
|---|---|---|
| (European Seabass) | official species listing | — |
| (Gilthead Seabream) | official species listing | — |
| (Meagre) | official species listing | — |
| (Atlantic Mackerel) | official species listing | — |
| (Atlantic Bonito) | official species listing | — |
| (Garfish) | official species listing | — |
| (Common Sole) | official species listing | — |
| (Thick-lipped Grey Mullet) | official species listing | — |
Official species-evidence source.
In spring, european seabass run shallow here, mostly 3 to 25 ft. Midsummer fish sit out in 2 to 30 ft before dropping to 10 to 55 ft for winter. Fall european seabass concentrate at Shoreline point, a good-rated point around 4 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a surface lure or a paddle-tail soft plastic most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Shoreline point (4 ft) | Paddle-tail soft plastic, Shallow minnow plug |
| Summer | 2 to 30 ft | dawn & dusk | Shoreline point (4 ft) | Surface lure, Paddle-tail soft plastic |
| Fall | 4 to 40 ft | dawn & dusk | Shoreline point (4 ft) | Slim metal lure, Minnow plug |
| Winter | 10 to 55 ft | midday | open water | Slow soft-plastic shad, Suspending minnow |
Early season gilthead seabream use the shallows, holding in 3 to 35 ft. Summer is a 2 to 45 ft game here, winter a 20 to 100 ft one. The chart's best answer is Feeding flat — feeding flat, 34 ft, prime for spring. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 35 ft | dusk | Feeding flat (34 ft) | see map |
| Summer | 2 to 45 ft | dawn & dusk | Feeding flat (34 ft) | see map |
| Fall | 6 to 65 ft | dawn & dusk | Feeding flat (34 ft) | see map |
| Winter | 20 to 100 ft | midday | Deepest basin (107 ft) | see map |
Come spring, look for meagre tight to the bank in 12 to 80 ft. They move out to 8 to 100 ft in summer and finish the year down in 24 to 108 ft. If you only fish one area, make it Deepest basin: a deep basin around 107 ft that scores prime in winter. Best bite is the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 12 to 80 ft | dusk | open water | see map |
| Summer | 8 to 100 ft | dusk | Deepest basin (107 ft) | see map |
| Fall | 12 to 108 ft | dusk | Deepest basin (107 ft) | see map |
| Winter | 24 to 108 ft | midday | Deepest basin (107 ft) | see map |
Early season atlantic mackerel use the shallows, holding in 5 to 45 ft. Summer is a 15 to 80 ft game here, winter a 27 to 108 ft one. The chart's best answer is Deepest basin — deep basin, 107 ft, prime for winter. Best bite is early morning and the evening. Tie on a feather rig or a small vertical jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | Shoreline point (4 ft) | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | Sharp break (24 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Sharp break (24 ft) | Compact silver jig, Sparse feather rig |
| Winter | 27 to 108 ft | midday | Deepest basin (107 ft) | Small deep jig |
In spring, atlantic bonito run shallow here, mostly 15 to 100 ft. Summer keeps them at 5 to 90 ft, and they winter in 25 to 108 ft. Deepest basin is the standout, a deep basin at roughly 107 ft, rated prime for winter atlantic bonito. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 100 ft | dawn & dusk | Sharp break (24 ft) | see map |
| Summer | 5 to 90 ft | dawn & dusk | Shoreline point (4 ft) | see map |
| Fall | 7 to 108 ft | dawn & dusk | Sharp break (24 ft) | see map |
| Winter | 25 to 108 ft | midday | Deepest basin (107 ft) | see map |
The spring pattern is a shallow one: garfish in 1 to 15 ft. Midsummer fish sit out in 2 to 20 ft before dropping to 20 to 60 ft for winter. The spot to know is Shoreline point, a point in about 4 ft of water that rates prime for garfish in spring. Plan around early morning and the evening in the warm months. Summer baits: a slim casting spoon or a surface-skipping fly gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & midday | Shoreline point (4 ft) | Slim silver spoon, Small inline spinner |
| Summer | 2 to 20 ft | dawn & dusk | Shoreline point (4 ft) | Slim casting spoon, Surface-skipping fly |
| Fall | 8 to 30 ft | dawn & dusk | Sharp break (24 ft) | Weighted slim spoon, Small silver jig |
| Winter | 20 to 60 ft | midday | Sharp break (24 ft) |
Cwb-Ii-1B - North also holds common sole (3 to 30 ft in summer), thick-lipped grey mullet (1 to 18 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 Deepest basin at roughly 107 ft.
Portuguese Environment Agency official SNIAmb bathing-water review was reviewed, but no stable government record establishes a public fishing entrance, parking or launch for this exact mapped child. This is an access-evidence gap, not a claim that public access does not exist. Verify land ownership, port and harbour rules, protected areas, local signs, parking, safety, permits and fishing permission before entry.
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Portugal waters are set by the Portuguese Directorate-General for Natural Resources, Safety and Maritime Services (recreational fishing) — and special regulations can apply to Cwb-Ii-1B - North specifically, so confirm the current rules before you fish. Check Portugal's live DGRM, regional, port-authority and protected-area rules before every coastal trip. A current licence, RecFishing catch reporting, daily possession limits, minimum sizes, species closures, method limits, bathing-season restrictions, navigation-channel exclusions and local maritime notices may apply. Marine protected areas including Berlengas, Arrábida, the Southwest Alentejo and Vicentine Coast, Ria Formosa and other reserves impose additional zoned restrictions or authorizations. A WFD boundary, source-audited contour, fishing-spot marker or bathing-water record is planning context only and never grants fishing, retention, shore entry, parking, launching, port access or safe navigation permission.
Check the official Portugal fishing regulations →
DGRM current species, minimum-size and closure guidance →
Check special-area and water-specific rules →
Check official shore-access information →
Cwb-Ii-1B - North is about 108 ft (33 m) deep at its deepest point. The depth chart comes from EMODnet, with national hydrographic source-reference audit bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Portugal national fisheries and coastal monitoring agencies informs the european seabass, gilthead seabream, meagre, atlantic mackerel, atlantic bonito, garfish, common sole, thick-lipped grey mullet roster for Cwb-Ii-1B - North. 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.
Feeding flat is the top-rated area: a feeding flat in about 34 ft of water that rates prime for gilthead seabream in spring. The map above holds the full rated-spot list for every species and season.
For european seabass, 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 Cwb-Ii-1B - North is regulated by the Portuguese Directorate-General for Natural Resources, Safety and Maritime Services (recreational fishing). Check the official Portugal regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Cwb-Ii-1A - South 8 mi · Cwb-Ii-2 - North 21 mi · Cwb-Ii-2 - Central 31 mi · Cwb-Ii-3A - North 53 mi · Cwb-Ii-3A - North West 56 mi · Lima-Wb1 59 mi · Cwb-Ii-3A - Central 61 mi · Cwb-Ii-3A - Central West 61 mi · Cwb-I-1A - North 67 mi · Cwb-Ii-3B - Sector 02 68 mi · Internacional-Minho 72 mi · Cwb-Ii-3B - Sector 05 77 mi
Browse all Portugal fishing maps. See every water on DepthScout. Bathymetry credit: EMODnet, with national hydrographic source-reference audit EMODnet Bathymetry DTM 2024 mean-depth grid — CDI-audited Portuguese hydrographic and research-survey/composite DTM (Lowest Astronomical Tide (LAT); 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.