Salt water depth chart
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18,854-acre N Nassafjärden Sweden coastal fishing map with an exact official national water-body boundary, EMODnet 2024 CDI-audited mixed survey/composite DTM contours, source-assessed fishing spots, official regional fish evidence, seasonal forage guidance, public-access review and current-rule links. Official SMHI SVAR 2022 named coastal water in Stockholm, Gotland and central Baltic. 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 101 m. 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. What follows comes from the same scoring engine that paints the spots above.
N Nassafjärden mäter 7 631 hektar bakom 170.9 km strandlinje, uppbruten av 613 öar. Ett strandindex på 5.5 betyder en labyrint av vikar och uddar: många fler kastmål än en rund sjö i samma storlek. Ungefär 8% av ytan är grundare än ~5 m — där finns vegetationen och betesfisken. Räkna med 16.9 km vatten från ena änden till den andra och 9.2 km på bredden. Högfjärdens kustvatten - North West ligger 6.4 km åt öster — närmaste grannvatten på kartan.
Gratis interaktiv fiskekarta — N Nassafjärden, Sverige: källgranskade kustdjupkurvor (97 % direktmätt) ner till 101 m (332 fot), och de bästa fiskeplatserna för abborre, gädda, gös med flera. Djupkartan är modellberäknad från sjöns verkliga strandlinje och största djup — använd den som vägledning, aldrig för navigation.
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 Perch) | official species listing | — |
| (Northern Pike) | official species listing | — |
| (Zander) | official species listing | — |
| (Sea Trout) | official species listing | — |
| (Atlantic Herring) | official species listing | — |
| (European Whitefish) | official species listing | — |
| (European Flounder) | official species listing | — |
| (European Smelt) | official species listing | — |
Official species-evidence source.
In spring, european perch run shallow here, mostly 1 to 3.5 m. Summer pushes them deeper, 2.5 to 8.5 m, and winter fish settle into 3.5 to 10 m. Weed flat is the standout, a weed flat at roughly 2 m, rated prime for spring european perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small crankbait (perch pattern) most summer days.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 3.5 m | midday & dawn | Weed flat (2 m) | Small jig + curly tail, Inline spinner #1-2 |
| Sommar | 2.5 to 8.5 m | dawn | Weed flat (2 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Höst | 3 to 10 m | midday | open water | Jigging spoon (small), Drop-shot on deep flats |
| Vinter | 3.5 to 10 m | midday & dawn | open water | Tungsten jig + maggots, Small balance jig |
In spring, northern pike run shallow here, mostly 0.5 to 2.5 m. Midsummer fish sit out in 2.5 to 6 m before dropping to 1.5 to 4.5 m for winter. Spring northern pike concentrate at Weed flat, a prime-rated weed flat around 2 m. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 2.5 m | midday & dawn | Weed flat (2 m) | #5 inline spinner, Spoon (red/white) |
| Sommar | 2.5 to 6 m | dawn & dusk | Weed flat (2 m) | Bucktail, Weedless spoon over cabbage |
| Höst | 2 to 5.5 m | midday & dawn | Weed flat (2 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Vinter | 1.5 to 4.5 m | midday | Weed flat (2 m) | Large jigging spoon |
In spring, zander run shallow here, mostly 1 to 4.5 m. Summer pushes them deeper, 4.5 to 11 m, and winter fish settle into 6 to 12 m. Rock reef is the standout, a rock pile at roughly 3 m, rated good for spring zander. Time it for the evening and early morning. You won't need more than a vertical softbait over humps or a deep crankbait most summer days.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 4.5 m | dusk & dawn | Rock reef (3 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Sommar | 4.5 to 11 m | dusk & dawn | open water | Vertical softbait over humps, Deep crankbait |
| Höst | 3.5 to 12 m | dusk & night | open water | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Vinter | 6 to 12 m | dusk & dawn | open water | Slow blade bait |
Start shallow in spring: sea trout sit in 1 to 6 m that time of year. Summer pushes them deeper, 4.5 to 15 m, and winter fish settle into 1.5 to 9 m. The spot to know is Rock reef, a rock pile in about 3 m of water that rates prime for sea trout in spring. Warm-month bites cluster around early morning and the evening. Throw a deep-running wobbler or a trolled spoon until the fish tell you otherwise.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 6 m | dawn & dusk | Rock reef (3 m) | Slim coastal spoon, Shallow-running wobbler |
| Sommar | 4.5 to 15 m | dawn & dusk | Shoreline point (16 m) | Deep-running wobbler, Trolled spoon |
| Höst | 1 to 7.5 m | dawn & dusk | Rock reef (3 m) | Coastal wobbler, Casting spoon |
| Vinter | 1.5 to 9 m | midday | Rock reef (3 m) | Slow coastal spoon, Suspending wobbler |
Spring puts atlantic herring in skinny water — 1.5 to 7.5 m is the zone. As the season builds they drop to 4.5 to 15 m, wintering in 6 to 18 m. Spring atlantic herring concentrate at Rock reef, a good-rated rock pile around 3 m. Warm-month bites cluster around early morning and the evening. A herring feather rig or a small silver jig covers the summer program.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1.5 to 7.5 m | dawn & dusk | Rock reef (3 m) | Small herring feather rig, Micro jig rig |
| Sommar | 4.5 to 15 m | dawn & dusk | open water | Herring feather rig, Small silver jig |
| Höst | 3 to 12 m | dawn & dusk | open water | Small feather rig, Compact silver spoon |
| Vinter | 6 to 18 m | midday | open water | Small silver jig, Sparse feather rig |
When the water first warms, european whitefish slide up into 3 to 12 m. By summer they slide out to 8.5 to 24 m, and by winter most fish are in 5.5 to 18 m. If you only fish one area, make it Rock reef: a rock pile around 3 m that scores good in fall. In summer the feeding windows fall in early morning and the evening. Keep a small vertical spoon or a micro jig rigged through the warm months.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 3 to 12 m | dawn & dusk | open water | Small silver spoon, Micro blade bait |
| Sommar | 8.5 to 24 m | dawn & dusk | open water | Small vertical spoon, Micro jig |
| Höst | 1.5 to 11 m | dusk & dawn | Rock reef (3 m) | Small gold spoon, Micro jig |
| Vinter | 5.5 to 18 m | midday | open water | Small jigging spoon |
N Nassafjärden also holds european flounder (2 to 11 m in summer), european smelt (7.5 to 21 m in summer). Pick any of them on the map above for rated spots and bait picks.
14 pieces of structure are mapped here — Deepest basin, around 101 m, is the deepest of them.
No Swedish Agency for Marine and Water Management active bathing location matched within 400 metres of this exact mapped shoreline. This is an access-evidence gap, not a claim that public access does not exist. Verify land ownership, local signs, parking, safety 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 Sweden waters are set by the Svenska Fiskeregler (official current Swedish fishing-rules service) — and special regulations can apply to N Nassafjärden specifically, so confirm the current rules before you fish. Check Svenska Fiskeregler and the Swedish Agency for Marine and Water Management immediately before every coastal trip. Area-specific closures, protected spawning areas, minimum and maximum sizes, gear restrictions and species prohibitions can change; recreational fishing for Baltic cod is prohibited during 2026. A mapped depth contour, fishing-spot marker or bathing-site access lead never establishes permission to fish, retain catch, cross private land, park, launch or navigate safely.
Check the official Sweden fishing regulations →
Swedish Agency for Marine and Water Management →
Check special-area and water-specific rules →
Check official shore-access information →
N Nassafjärden is about 332 ft (101 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.
N Nassafjärden är som djupast cirka 101 meter (332 fot). Djupen kommer från verkliga lodningar.
Official coastal monitoring from Sweden national fisheries and coastal monitoring agencies informs the european perch, northern pike, zander, sea trout, atlantic herring, european whitefish, european flounder, european smelt roster for N Nassafjärden. 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.
Weed flat is the top-rated area: a weed flat in about 7 ft of water that rates prime for european perch in spring. Scroll up to the map for the complete spot list by species and season.
For european perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on N Nassafjärden is regulated by the Svenska Fiskeregler (official current Swedish fishing-rules service). Check the official Sweden regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Högfjärdens kustvatten - North West 4 mi · Kobbfjärden 5 mi · Högfjärdens kustvatten - Central West 6 mi · Björkskärsfjärden - North 6 mi · Skarpöfjärden - North 6 mi · Lökharfjärden 7 mi · Svartlögafjärden - Central 8 mi · Högfjärdens kustvatten - North 9 mi · Högfjärdens kustvatten - Central 9 mi · Stockholms skärgårds M kustvatten - Sector 03 10 mi · Skarpöfjärden - South 10 mi · Svartlögafjärden - North 10 mi
See how N Nassafjärden stacks up: best zander lakes in Sweden · best northern pike lakes in Sweden · best european perch lakes in Sweden · best sea trout lakes in Sweden
Browse all Sweden 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 mixed survey/composite DTM (Lowest Astronomical Tide (LAT); 97% measured, 3% 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.