Sign inSign up free Sign inSign up free Sign inSign up freeSalt water depth chart
Today's read
Recent public catches load as you reach this section.
26,686-acre Cwb-Ii-4. Sector 04 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 Central 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 179 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. Below is the species-by-species picture, pulled from the same data the map uses.
Cwb-Ii-4 - Sector 04 maps at 26,687 acres behind 27.7 miles of shoreline. At index 1.2 the outline is almost a bowl — read the depth changes, not the shoreline. The shallow band under 15 ft claims about 5% of the surface — that's where the groceries are. Tip to tip the water measures near 10.5 mi with a 6-mi widest point. Cwb-Ii-4 - Sector 03 sits 5 mi west — the closest neighbouring chart.
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.
Early season european seabass use the shallows, holding in 3 to 25 ft. Summer is a 2 to 30 ft game here, winter a 10 to 55 ft one. The chart's best answer is Shoreline point — point, 29 ft, good for fall. Best bite is early morning and the evening. Tie on a surface lure or a paddle-tail soft plastic and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Shoreline point (6 ft) | Paddle-tail soft plastic, Shallow minnow plug |
| Summer | 2 to 30 ft | dawn & dusk | Shoreline point (29 ft) | Surface lure, Paddle-tail soft plastic |
| Fall | 4 to 40 ft | dawn & dusk | Shoreline point (29 ft) | Slim metal lure, Minnow plug |
| Winter | 10 to 55 ft | midday | open water | Slow soft-plastic shad, Suspending minnow |
In spring, gilthead seabream run shallow here, mostly 3 to 35 ft. Midsummer fish sit out in 2 to 45 ft before dropping to 20 to 100 ft for winter. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 35 ft | dusk | open water | see map |
| Summer | 2 to 45 ft | dawn & dusk | open water | see map |
| Fall | 6 to 65 ft | dawn & dusk | open water | see map |
| Winter | 20 to 100 ft | midday | open water | see map |
In spring, meagre run shallow here, mostly 12 to 80 ft. Summer pushes them deeper, 8 to 100 ft, and winter fish settle into 40 to 179 ft. Deepest basin is the standout, a deep basin at roughly 177 ft, rated prime for winter meagre. Time it for 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 | open water | see map |
| Fall | 15 to 130 ft | dusk | Sharp break (45 ft) | see map |
| Winter | 40 to 179 ft | midday | Deepest basin (177 ft) | see map |
In spring, atlantic mackerel run shallow here, mostly 5 to 45 ft. Midsummer fish sit out in 15 to 80 ft before dropping to 30 to 120 ft for winter. Summer atlantic mackerel concentrate at Sharp break, a good-rated drop-off around 45 ft. Fish it in early morning and the evening and you'll meet the bite. 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 (29 ft) | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | Sharp break (45 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Sharp break (45 ft) | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | Sharp break (45 ft) | Small deep jig |
Come spring, look for atlantic bonito tight to the bank in 15 to 100 ft. Through summer count on 5 to 90 ft; the winter hold is 41 to 179 ft. If you only fish one area, make it Deepest basin: a deep basin around 177 ft that scores prime in winter. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 100 ft | dawn & dusk | Shoreline point (29 ft) | see map |
| Summer | 5 to 90 ft | dawn & dusk | Shoreline point (29 ft) | see map |
| Fall | 8 to 120 ft | dawn & dusk | Sharp break (45 ft) | see map |
| Winter | 41 to 179 ft | midday | Deepest basin (177 ft) | see map |
Spring garfish on Cwb-Ii-4 - Sector 04 hold shallow, usually 1 to 15 ft. By summer they slide out to 2 to 20 ft, and by winter most fish are in 20 to 60 ft. The chart's best answer is Shoreline point — point, 6 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a slim casting spoon or a surface-skipping fly.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & midday | Shoreline point (6 ft) | Slim silver spoon, Small inline spinner |
| Summer | 2 to 20 ft | dawn & dusk | Shoreline point (6 ft) | Slim casting spoon, Surface-skipping fly |
| Fall | 8 to 30 ft | dawn & dusk | Shoreline point (29 ft) | Weighted slim spoon, Small silver jig |
| Winter | 20 to 60 ft | midday | Sharp break (45 ft) |
Cwb-Ii-4 - Sector 04 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.
The chart marks 16 structure features on Cwb-Ii-4 - Sector 04; the deepest is Deepest basin at about 177 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-4 - Sector 04 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-4 - Sector 04 is about 179 ft (55 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-4 - Sector 04. 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.
Deepest basin is the top-rated area: a deep basin in about 177 ft of water that rates prime for meagre in winter. 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-4 - Sector 04 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-4 - Sector 03 5 mi · Cwb-Ii-4 - Sector 02 8 mi · Cwb-Ii-4 - Sector 06 10 mi · Cwb-Ii-4 - Sector 01 10 mi · Cwb-Ii-4 - Sector 05 11 mi · Cwb-Ii-3B - Sector 10 20 mi · Tejo-Wb1 - Central 37 mi · Tejo-Wb1 - West 37 mi · Cwb-Ii-3B - Sector 05 42 mi · Cwb-Ii-3B - Sector 02 51 mi · Cwb-Ii-3A - Central West 57 mi · Cwb-Ii-3A - Central 58 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.