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27,398-acre Isefjord. Middle Denmark saltwater fishing map with official Danish Geodata Agency 50 m bathymetry, measured-only fishing spots, DTU-supported fish targets, seasonal forage guidance and public shore-access context. The middle Isefjord basin and island passages, separated from the outer entrance and southern arms for page-scale contour reading. The water tops out around 58 ft. The depth chart comes from Danish Geodata Agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here's the year, species by species, as the scoring engine sees it.
The outline encloses 27,410 acres, worked by 35.5 miles of shoreline. With a 1.5 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 13% of this chart. The basin spans about 14.1 mi end to end and 4.9 mi across at its widest. Sejerø Bay - Middle sits 15 mi west — the closest neighbouring chart.
The target roster combines the named DTU monitoring area with conservative habitat-compatible Danish regional records. It documents observed or regionally supported occurrence, not equal abundance, a catch rate, or a promised catch in this child. European eel is omitted because recreational eel fishing is currently closed. 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 |
|---|---|---|
| Havørred (Sea Trout) | official species listing | — |
| Sild (Atlantic Herring) | official species listing | — |
| Skrubbe (European Flounder) | official species listing | — |
| Hornfisk (Garfish) | official species listing | — |
| Rødspætte (European Plaice) | official species listing | — |
| Tunge (Common Sole) | official species listing | — |
| Aborre (European Perch) | official species listing | — |
| Smelt (European Smelt) | official species listing | — |
| Hvilling (Whiting) | official species listing | — |
| Tyklæbet multe (Thick-lipped Grey Mullet) | official species listing | — |
Official species-evidence source.
Early season sea trout use the shallows, holding in 3 to 20 ft. Summer is a 15 to 50 ft game here, winter a 5 to 30 ft one. The chart's best answer is Sharp break — drop-off, 27 ft, prime for summer. Best bite is early morning and the evening. Tie on a deep-running wobbler or a trolled spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Shoreline point (18 ft) | Slim coastal spoon, Shallow-running wobbler |
| Summer | 15 to 50 ft | dawn & dusk | Sharp break (27 ft) | Deep-running wobbler, Trolled spoon |
| Fall | 3 to 25 ft | dawn & dusk | Shoreline point (18 ft) | Coastal wobbler, Casting spoon |
| Winter | 5 to 30 ft | midday | Shoreline point (18 ft) | Slow coastal spoon, Suspending wobbler |
Spring atlantic herring on Isefjord - Middle hold shallow, usually 5 to 25 ft. By summer they slide out to 15 to 50 ft, and by winter most fish are in 17 to 58 ft. The chart's best answer is Deepest basin — deep basin, 58 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a herring feather rig or a small silver jig.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | DDM measured current seam (25 ft) | Small herring feather rig, Micro jig rig |
| Summer | 15 to 50 ft | dawn & dusk | Sharp break (27 ft) | Herring feather rig, Small silver jig |
| Fall | 10 to 40 ft | dawn & dusk | DDM measured current seam (25 ft) | Small feather rig, Compact silver spoon |
| Winter | 17 to 58 ft chart-limited; documented 20 to 60 ft | midday | Deepest basin (58 ft) | Small silver jig, Sparse feather rig |
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 25 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 (25 ft) | Small bucktail dragged on bottom |
| Summer | 6 to 35 ft | dawn & dusk | Feeding flat (25 ft) | Bottom jig with spinner blade |
| Fall | 8 to 40 ft | dusk | Sharp break (27 ft) | Compact bottom jig |
| Winter | 15 to 50 ft | midday | Sharp break (27 ft) | Small bottom 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 58 ft one. The chart's best answer is DDM measured shoal — gravel shoal, 13 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & midday | DDM measured shoal (13 ft) | Slim silver spoon, Small inline spinner |
| Summer | 2 to 20 ft | dawn & dusk | Shoreline point (18 ft) | Slim casting spoon, Surface-skipping fly |
| Fall | 8 to 30 ft | dawn & dusk | DDM measured current seam (25 ft) | Weighted slim spoon, Small silver jig |
| Winter | 17 to 58 ft chart-limited; documented 20 to 60 ft | midday | Deepest basin (58 ft) |
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 58 ft. Start at Feeding flat. It's a feeding flat holding about 25 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dusk | Feeding flat (25 ft) | Beaded flowing trace |
| Summer | 6 to 40 ft | dawn & dusk | Feeding flat (25 ft) | Light spooned bottom rig, Beaded trace |
| Fall | 10 to 50 ft | dusk | DDM measured channel edge (29 ft) | Beaded bottom trace |
| Winter | 17 to 58 ft chart-limited; documented 25 to 80 ft | midday | Deepest basin (58 ft) |
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, 17 to 58 ft in winter. The spot to know is Feeding flat, a feeding flat in about 25 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 30 ft | dusk | Feeding flat (25 ft) | Tiny bottom jig |
| Summer | 3 to 30 ft | dusk | Feeding flat (25 ft) | Light rolling-lead rig |
| Fall | 8 to 40 ft | dusk | DDM measured channel edge (29 ft) | Compact bottom jig |
| Winter | 17 to 58 ft chart-limited; documented 20 to 70 ft | night | Deepest basin (58 ft) |
Isefjord - Middle also holds european perch (8 to 28 ft in summer), european smelt (17 to 58 ft in summer), whiting (17 to 58 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 8 structure features on Isefjord - Middle; the deepest is Deepest basin at about 58 ft.
Access data: European Environment Agency - 2025 Bathing Water Directive Sites (Denmark). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Denmark waters are set by the Danish Agency for Green Transition and Aquatic Environment (current recreational fishing rules) — and special regulations can apply to Isefjord - Middle specifically, so confirm the current rules before you fish. Most anglers using light hand gear need the applicable Danish angling licence, subject to the official age exemptions. Check live species rules, the mapped and unmapped 500-metre stream-mouth conservation belts, local fishing rights, protected areas and posted shore access before every trip. Recreational European eel fishing is currently prohibited, so eel is not promoted as a target here.
Check the official Denmark fishing regulations →
Danish fishing-licence portal →
Check special-area and water-specific rules →
Isefjord - Middle is about 58 ft (18 m) deep at its deepest point. The depth chart comes from Danish Geodata Agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from DTU Aqua key-fisher monitoring, 2020–2022 informs the sea trout, atlantic herring, european flounder, garfish, european plaice, common sole, european perch, european smelt, whiting, thick-lipped grey mullet roster for Isefjord - Middle. 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 27 ft of water that rates prime for sea trout in summer. Scroll up to the map for the complete spot list by species and season.
For sea trout, 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 Isefjord - Middle is regulated by the Danish Agency for Green Transition and Aquatic Environment (current recreational fishing rules). Check the official Denmark regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Sejerø Bay - Middle 15 mi · Sejerø Bay - Sejerø Island 22 mi · Sejerø Bay - Samsø Side 30 mi · Ebeltoft Vig 36 mi · Great Belt - Kattegat Approach West 37 mi · Djursland Coast - Grenaa South 37 mi · Great Belt - Kalundborg West 38 mi · N Öresunds kustvatten - North 39 mi, SE · N Öresunds kustvatten - South 40 mi, SE · Øresund - North 40 mi · Skälderviken - Central West 44 mi, SE · Køge Bay - North 44 mi
See how Isefjord - Middle stacks up: best european perch lakes in Denmark · best sea trout lakes in Denmark · best atlantic herring lakes in Denmark · best european flounder lakes in Denmark
Browse all Denmark fishing maps. See every water on DepthScout. Bathymetry credit: Danish Geodata Agency Denmark's Depth Model, 50 m resolution (DKMSL(2022) / mean sea level (EPSG:10547); 67% measured, 33% 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.