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29,535-acre Baie de Somme. North West France saltwater fishing map with official SHOM 100 m bathymetry, source-qualified fishing spots, official regional fish evidence, seasonal forage guidance, public shore-use context and current-rule links. The Baie de Somme tidal-estuary system, with mobile channels, mud and sand flats, and outer-bank current. This page covers the north west angler-scale survey window. The water tops out around 55 ft. The depth chart comes from Shom (Service hydrographique et océanographique de la Marine) 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.
Baie de Somme - North West maps at 29,537 acres behind 28.3 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 16% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 9.9 mi end to end and 6.2 mi across at its widest. Baie de Somme - South West sits 6 mi south — the closest neighbouring chart.
Baie de Somme — North West, France : carte SHOM officielle jusqu’à 17 m; spots pour bar commun, sole commune. Pour préparer la pêche, jamais pour naviguer. Les profondeurs et les points de structure proviennent de la grille bathymétrique officielle du Shom. Les données servent à préparer la pêche et ne doivent jamais être utilisées pour la navigation.
Regional occurrence supports a search target, not equal abundance, child-specific catch rate, retention permission or a promised catch. Current national, EU, regional, protected-area and species rules 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 |
|---|---|---|
| bar commun (European Seabass) | official species listing | — |
| sole commune (Common Sole) | official species listing | — |
| flet commun (European Flounder) | official species listing | — |
| plie commune (European Plaice) | official species listing | — |
| merlan (Whiting) | official species listing | — |
| orphie (Garfish) | official species listing | — |
| maquereau commun (Atlantic Mackerel) | official species listing | — |
| mulet lippu (Thick-lipped Grey Mullet) | official species listing | — |
| mulet cabot (Flathead Grey Mullet) | official species listing | — |
| barbue (Brill) | official species listing | — |
| raie bouclée (Thornback Ray) | official species listing | — |
| anguille européenne (European Eel) | official species listing | — |
| saumon atlantique (Atlantic Salmon) | official species listing | — |
Official species-evidence source.
Spring european seabass on Baie de Somme - North West hold shallow, usually 3 to 25 ft. By summer they slide out to 2 to 30 ft, and by winter most fish are in 10 to 55 ft. The chart's best answer is SHOM-grid current seam — current seam, 22 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with a surface lure or a paddle-tail soft plastic.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | SHOM-grid current seam (22 ft) | Paddle-tail soft plastic, Shallow minnow plug |
| Summer | 2 to 30 ft | dawn & dusk | SHOM-grid current seam (22 ft) | Surface lure, Paddle-tail soft plastic |
| Fall | 4 to 40 ft | dawn & dusk | SHOM-grid current seam (22 ft) | Slim metal lure, Minnow plug |
| Winter | 10 to 55 ft | midday | Deepest basin (53 ft) | Slow soft-plastic shad, Suspending minnow |
The spring pattern is a shallow one: common sole in 6 to 30 ft. The depth story barely changes: 3 to 30 ft through summer, 16 to 55 ft in winter. The spot to know is Feeding flat, a feeding flat in about 12 ft of water that rates prime for common sole in spring. Plan around the evening in the warm months. Summer baits: a light rolling-lead rig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 30 ft | dusk | Feeding flat (12 ft) | Tiny bottom jig |
| Summer | 3 to 30 ft | dusk | Feeding flat (12 ft) | Light rolling-lead rig |
| Fall | 8 to 40 ft | dusk | SHOM-grid channel edge (28 ft) | Compact bottom jig |
| Winter | 16 to 55 ft | night | Deepest basin (53 ft) |
Spring puts european flounder in skinny water — 5 to 25 ft is the zone. As the season builds they drop to 6 to 35 ft, wintering in 15 to 50 ft. Spring european flounder concentrate at Feeding flat, a prime-rated feeding flat around 12 ft. Warm-month bites cluster around early morning and the evening. A bottom jig with spinner blade covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dusk | Feeding flat (12 ft) | Small bucktail dragged on bottom |
| Summer | 6 to 35 ft | dawn & dusk | Feeding flat (12 ft) | Bottom jig with spinner blade |
| Fall | 8 to 40 ft | dusk | Sharp break (30 ft) | Compact bottom jig |
| Winter | 15 to 50 ft | midday | Sharp break (30 ft) | Small bottom jig |
Come spring, look for european plaice tight to the bank in 8 to 35 ft. Expect a summer slide to 6 to 40 ft, then a winter hold in 17 to 55 ft. Start at Feeding flat. It's a feeding flat holding about 12 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A light spooned bottom rig or a beaded trace is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dusk | Feeding flat (12 ft) | Beaded flowing trace |
| Summer | 6 to 40 ft | dawn & dusk | Feeding flat (12 ft) | Light spooned bottom rig, Beaded trace |
| Fall | 10 to 50 ft | dusk | SHOM-grid channel edge (28 ft) | Beaded bottom trace |
| Winter | 17 to 55 ft | midday | Deepest basin (53 ft) |
Come spring, look for whiting tight to the bank in 15 to 55 ft. Through summer count on 16 to 55 ft; the winter hold is 12 to 55 ft. Start at SHOM-grid channel edge. It's a channel edge holding about 28 ft of water and rates prime come spring. Prime time lands in early morning. A small vertical jig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 55 ft | dawn & dusk | SHOM-grid channel edge (28 ft) | Small silver jig, Two-hook feather rig |
| Summer | 16 to 55 ft | dawn | Deepest basin (53 ft) | Small vertical jig |
| Fall | 9 to 55 ft | dusk | SHOM-grid channel edge (28 ft) | Small silver jig, Sparse feather rig |
| Winter | 12 to 55 ft | dusk | Deepest basin (53 ft) | Compact vertical jig |
Early season garfish use the shallows, holding in 1 to 15 ft. Summer is a 2 to 20 ft game here, winter a 17 to 55 ft one. The chart's best answer is Shoreline point — point, 4 ft, prime for spring. Best bite is early morning and the evening. Tie on a slim casting spoon or a surface-skipping fly and you're in the game.
| 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 | SHOM-grid current seam (22 ft) | Weighted slim spoon, Small silver jig |
| Winter | 17 to 55 ft | midday | Deepest basin (53 ft) |
Baie de Somme - North West also holds atlantic mackerel (10 to 55 ft in summer), thick-lipped grey mullet (1 to 18 ft in summer), flathead grey mullet (1 to 22 ft in summer), brill (6 to 50 ft in summer), thornback ray (8 to 55 ft in summer), european eel (6 to 28 ft in summer), atlantic salmon (16 to 55 ft in summer). Pick any of them on the map above for rated spots and bait picks.
The chart marks 9 structure features on Baie de Somme - North West; the deepest is Deepest basin at about 53 ft.
Access data: European Environment Agency — 2025 Bathing Water Directive Sites (France). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for France waters are set by the Légifrance (current French recreational sea-fishing minimum sizes) — and special regulations can apply to Baie de Somme - North West specifically, so confirm the current rules before you fish. French recreational sea-fishing rules combine current national and European species measures with façade, prefectural, marine-protected-area, harbour and local access controls. Check live minimum sizes, quotas, seasonal or method closures, marking requirements and any no-take zone before every trip. A SHOM contour, fishing-spot marker or designated bathing-water lead is planning context only and never permission to fish, retain a catch, park, launch or enter restricted shore or port property.
Check the official France fishing regulations →
French Ministry for Ecological Transition — recreational sea fishing →
Check special-area and water-specific rules →
Check official shore-access information →
Baie de Somme - North West is about 55 ft (17 m) deep at its deepest point. The depth chart comes from Shom (Service hydrographique et océanographique de la Marine) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Ifremer CGFS and coastal estuary monitoring regional survey evidence informs the european seabass, common sole, european flounder, european plaice, whiting, garfish, atlantic mackerel, thick-lipped grey mullet, flathead grey mullet, brill, thornback ray, european eel, atlantic salmon roster for Baie de Somme - North 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.
SHOM-grid current seam is the top-rated area: a current seam in about 22 ft of water that rates prime for european seabass in summer. The interactive chart above rates every spot for each 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 Baie de Somme - North West is regulated by the Légifrance (current French recreational sea-fishing minimum sizes). Check the official France regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Baie de Somme - South West 6 mi · Southern Opal Coast - South West 10 mi · Southern Opal Coast - South East 12 mi · Alabaster Coast - North West 5 14 mi · Southern Opal Coast - North West 20 mi · Southern Opal Coast - North East 21 mi · Alabaster Coast - North West 4 23 mi · Boulogne Bay - South West 31 mi · Boulogne Bay - South East 31 mi · Alabaster Coast - North West 3 32 mi · Alabaster Coast - South West 3 37 mi · Boulogne Bay - North West 41 mi
See how Baie de Somme - North West stacks up: best european flounder lakes in France · best garfish lakes in France · best european seabass lakes in France · best common sole lakes in France
Browse all France fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.