Lake depth chart
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Rating depth structure for northern pike.
Recent public catches load as you reach this section.
187-acre lake in Norway. The lake tops out around 33 m. The depth chart comes from published 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.
Vannet tegner ut 76 hektar med 5 km strand. Strandlinjen er moderat strukturert (indeks 1.6). Omtrent 30% av flaten er grunnere enn ~5 m — der maten finnes. Fra ende til ende måler vannet omtrent 1.4 km, på det bredeste 1 km. Vannet ligger i Asker kommune. Nærmeste kartlagte vann er Stovivannet, 4.8 km mot nord.
Gratis interaktivt fiskekart — Semsvannet, Norge: dybdekoter fra ekte dybdemålinger ned til 33 m (107 fot), og de beste fiskeplassene for ørret, abbor, gjedde med flere. Dybdekartet er modellberegnet fra innsjøens virkelige strandlinje og største dybde — bruk det som en veiledning, aldri til navigasjon.
Spring puts brown trout in skinny water — 1 to 7.5 m is the zone. As the season builds they drop to 7.5 to 18 m, wintering in 1.5 to 11 m. Summer brown trout concentrate at Break off the point, a prime-rated drop-off around 18 m. Warm-month bites cluster around after dark and early morning. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 1 to 7.5 m | dawn & dusk | Main-lake point (5.5 m) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Sommer | 7.5 to 18 m | night & dawn | Break off the point (18 m) | Spoon at the thermocline, Deep stickbait (night) |
| Høst | 1.5 to 9 m | dusk & dawn | Main-lake point (5.5 m) | Jerkbait over gravel, Casting spoon |
| Vinter | 1.5 to 11 m | dawn | open water | Jigging spoon, Small stickbait (slow) |
Early season european perch use the shallows, holding in 1 to 3.5 m. Expect a summer slide to 2.5 to 8.5 m, then a winter hold in 3.5 to 10 m. Put Shallow bay flat first on the milk run — a weed flat near 1.5 m that grades prime for spring. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small crankbait (perch pattern) and you're in the game.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 1 to 3.5 m | midday & dawn | Shallow bay flat (1.5 m) | Small jig + curly tail, Inline spinner #1-2 |
| Sommer | 2.5 to 8.5 m | dawn | Back-bay flat (2 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Høst | 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 |
Come spring, look for northern pike tight to the bank in 0.5 to 2.5 m. Expect a summer slide to 2.5 to 6 m, then a winter hold in 1.5 to 4.5 m. Start at Shallow bay flat. It's a weed flat holding about 1.5 m of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (1.5 m) | #5 inline spinner, Spoon (red/white) |
| Sommer | 2.5 to 6 m | dawn & dusk | Back-bay flat (2 m) | Bucktail, Weedless spoon over cabbage |
| Høst | 2 to 5.5 m | midday & dawn | Back-bay flat (2 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Vinter | 1.5 to 4.5 m | midday | Shallow bay flat (1.5 m) | Tip-ups, Large jigging spoon |
The spring pattern is a shallow one: lake whitefish in 4.5 to 14 m. Midsummer fish sit out in 12 to 27 m before dropping to 7.5 to 21 m for winter. The spot to know is Break off the point, a drop-off in about 18 m of water that rates prime for lake whitefish in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 4.5 to 14 m | midday & dawn | open water | Small jig + waxworm, Blade bait (small) |
| Sommer | 12 to 27 m | dawn | Break off the point (18 m) | Blade bait vertical, Small jigging spoon |
| Høst | 2.5 to 9 m | dusk | Main-lake point (5.5 m) | Small spoon (gold), Jig + plastic larva |
| Vinter | 7.5 to 21 m | midday & dawn | Break off the point (18 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
The spring pattern is a shallow one: arctic char in 1 to 4.5 m. Midsummer fish sit out in 6 to 18 m before dropping to 3 to 12 m for winter. The spot to know is Break off the point, a drop-off in about 18 m of water that rates prime for arctic char in summer. Plan around early morning in the warm months. Summer baits: a jigging spoon vertical or a tube jig (smelt) gets it done.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 1 to 4.5 m | midday & dawn | open water | Small casting spoon (silver/orange), Jerkbait (small) |
| Sommer | 6 to 18 m | dawn | Break off the point (18 m) | Jigging spoon vertical, Tube jig (smelt) |
| Høst | 2.5 to 9 m | midday & dusk | open water | Casting spoon (orange/gold), Beadhead streamer |
| Vinter | 3 to 12 m | midday & dawn | open water | Jigging spoon (glow/silver), Tungsten jig + plastic |
When the water first warms, european eel slide up into 1.5 to 6 m. Summer is a 2 to 8.5 m game here, winter a 5.5 to 15 m one. The feeding windows run after dark and the evening.
| Sesong | Dybde | Beste tid | Start ved | Agn |
|---|---|---|---|---|
| Vår | 1.5 to 6 m | dusk & night | open water | |
| Sommer | 2 to 8.5 m | night & dusk | open water | |
| Høst | 3 to 12 m | night | open water | |
| Vinter | 5.5 to 15 m | midday | open water |
Semsvannet also holds roach (1 to 5.5 m in summer), rudd (0.5 to 3.5 m in summer). Pick any of them on the map above for rated spots and bait picks.
6 pieces of structure are mapped here — Deep basin, around 32 m, is the deepest of them.
Season dates, license requirements, and size and bag limits for Norway waters are set by the Norwegian Environment Agency (fishing rules) — and special regulations can apply to Semsvannet specifically, so confirm the current rules before you fish.
Check the official Norway fishing regulations →
Semsvannet is about 107 ft (33 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Semsvannet er på det dypeste omtrent 33 meter (107 fot). Dybdene kommer fra virkelige målinger.
Anglers target brown trout, european perch, northern pike, lake whitefish, arctic char, european eel, roach, rudd on Semsvannet. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for european perch in spring. The interactive chart above rates every spot for each species and season.
For brown trout, the summer bite is best in after dark and 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 Semsvannet is regulated by the Norwegian Environment Agency (fishing rules). Check the official Norway regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Stovivannet 3 mi · Verkensvannet 4 mi · Svarttjern 9 mi · Bogstadvannet 10 mi · Holmendammen 11 mi · Strømsdammen 12 mi · Lillevann 12 mi · Kroktjern 12 mi · Øvresetertjern 12 mi · Abbortjern 13 mi · Bønnerudtjern 13 mi · Gjersjøen 14 mi
See how Semsvannet stacks up: best northern pike lakes in Norway · best european perch lakes in Norway · best brown trout lakes in Norway · best lake whitefish lakes in Norway
Browse all Norway 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.