Salt water depth chart
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32,555-acre Cwb-Ii-4. Sector 01 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 353 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 rest of this page walks each species through its year, using the map's own scoring.
On the chart, Cwb-Ii-4 - Sector 01 draws 32,536 acres inside 29.6 miles of shoreline. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. About 0% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 9.4 mi end to end and 7.5 mi across at its widest. For a second option, Cwb-Ii-4 - Sector 02 lies 6 mi east.
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.
Start shallow in spring: european seabass sit in 3 to 25 ft that time of year. Warm water sends them out to 2 to 30 ft; cold water stacks them in 10 to 55 ft. Fish it in early morning and the evening and you'll meet the bite. Throw a surface lure or a paddle-tail soft plastic until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | open water | Paddle-tail soft plastic, Shallow minnow plug |
| Summer | 2 to 30 ft | dawn & dusk | open water | Surface lure, Paddle-tail soft plastic |
| Fall | 4 to 40 ft | dawn & dusk | open water | Slim metal lure, Minnow plug |
| Winter | 10 to 55 ft | midday | open water | Slow soft-plastic shad, Suspending minnow |
Come spring, look for gilthead seabream tight to the bank in 3 to 35 ft. They move out to 2 to 45 ft in summer and finish the year down in 20 to 100 ft. Best bite is early morning and the evening.
| 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 |
Early season meagre use the shallows, holding in 12 to 80 ft. Summer is an 8 to 100 ft game here, winter a 40 to 180 ft one. The chart's best answer is Sharp break — drop-off, 138 ft, good for 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 | open water | see map |
| Fall | 15 to 130 ft | dusk | Sharp break (109 ft) | see map |
| Winter | 40 to 180 ft | midday | Sharp break (138 ft) | see map |
Come spring, look for atlantic mackerel tight to the bank in 5 to 45 ft. They move out to 15 to 80 ft in summer and finish the year down in 30 to 120 ft. If you only fish one area, make it Sharp break: a drop-off around 109 ft that scores good in winter. Best bite is early morning and the evening. A feather rig or a small vertical jig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | open water | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | open water | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | open water | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | Sharp break (109 ft) | Small deep jig |
The spring pattern is a shallow one: atlantic bonito in 15 to 100 ft. The depth story barely changes: 5 to 90 ft through summer, 50 to 220 ft in winter. Top water on the chart: Sharp break, a drop-off in the 109 ft range, good in fall. 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 (109 ft) | see map |
| Summer | 5 to 90 ft | dawn & dusk | Sharp break (109 ft) | see map |
| Fall | 8 to 120 ft | dawn & dusk | Sharp break (109 ft) | see map |
| Winter | 50 to 220 ft | midday | Sharp break (138 ft) | see map |
Spring puts garfish in skinny water — 1 to 15 ft is the zone. Warm water sends them out to 2 to 20 ft; cold water stacks them in 20 to 60 ft. Plan around early morning and the evening in the warm months. A slim casting spoon or a surface-skipping fly covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & midday | open water | Slim silver spoon, Small inline spinner |
| Summer | 2 to 20 ft | dawn & dusk | open water | Slim casting spoon, Surface-skipping fly |
| Fall | 8 to 30 ft | dawn & dusk | open water | Weighted slim spoon, Small silver jig |
| Winter | 20 to 60 ft | midday | open water |
Cwb-Ii-4 - Sector 01 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.
Cwb-Ii-4 - Sector 01 carries 7 mapped structure features, topping out (or rather bottoming out) at Sharp break, about 301 ft down.
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 01 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 01 is about 353 ft (108 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 01. 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.
Sharp break is the top-rated area: a drop-off in about 109 ft of water that rates good for atlantic bonito in fall. Scroll up to the map for the complete spot list by 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 01 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 02 6 mi · Cwb-Ii-4 - Sector 03 9 mi · Cwb-Ii-4 - Sector 04 10 mi · Cwb-Ii-3B - Sector 10 15 mi · Cwb-Ii-4 - Sector 05 18 mi · Cwb-Ii-4 - Sector 06 18 mi · Cwb-Ii-3B - Sector 05 37 mi · Cwb-Ii-3B - Sector 02 45 mi · Tejo-Wb1 - West 46 mi · Tejo-Wb1 - Central 47 mi · Cwb-Ii-3A - Central West 51 mi · Cwb-Ii-3A - Central 53 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.