Lake depth chart
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Rating depth structure for zander.
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2,499-acre lake in Finland. The lake tops out around 20 m. The depth chart comes from Finnish Environment Institute (Syke) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Species by species, here's what the data says the year looks like.
Kartalla Joutsjärvi kattaa 1 062 hehtaaria, rantaviivaa 37.5 km. Rantaviiva on voimakkaasti rikkonainen (indeksi 3.2) — lahtia ja niemiä kaikkialla, mikä moninkertaistaa kalastettavan reunan. Noin 71% pinnasta on matalampaa kuin ~5 m — siellä ruokaketju elää. Päästä päähän vesi mittaa noin 6.3 km, leveimmillään 4.7 km. Vesi sijaitsee alueella Lahden seutukunta. Lähin kartoitettu vesi on Enovesi-Keihäsjärvi, 4.8 km kaakkoon.
Ilmainen interaktiivinen kalastuskartta — Joutsjärvi, Suomi: syvyyskäyrät todellisista syvyysmittauksista 20 metriin (66 jalkaa) asti, parhaat kalapaikat lajeille ahven, hauki, kuha ja muut. Syvyyskäyrät perustuvat Syken todellisiin syvyysmittauksiin (CC BY 4.0). Käytä karttaa suuntaa-antavana, älä koskaan navigointiin.
Start shallow in spring: european perch sit in 1 to 3.5 m that time of year. Summer pushes them deeper, 2.5 to 8.5 m, and winter fish settle into 3.5 to 10 m. The spot to know is Back-bay flat, a weed flat in about 1 m of water that rates prime for european perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small crankbait (perch pattern) until the fish tell you otherwise.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 3.5 m | midday & dawn | Back-bay flat (1 m) | Small jig + curly tail, Inline spinner #1-2 |
| Kesä | 2.5 to 8.5 m | dawn | Sharp break (6.5 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Syksy | 3 to 10 m | midday | Sharp break (6.5 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 3.5 to 10 m | midday & dawn | Sharp break (6.5 m) | Tungsten jig + maggots, Small balance jig |
The spring pattern is a shallow one: northern pike in 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. The spot to know is Shallow bay flat, a weed flat in about 0.5 m of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (0.5 m) | #5 inline spinner, Spoon (red/white) |
| Kesä | 2.5 to 6 m | dawn & dusk | Sharp break (5 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 2 to 5.5 m | midday & dawn | Sharp break (5 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1.5 to 4.5 m | midday | Back-bay flat (1 m) | Tip-ups, Large jigging spoon |
Start shallow in spring: zander sit in 1 to 4.5 m that time of year. Summer pushes them deeper, 4.5 to 11 m, and winter fish settle into 6 to 12 m. The spot to know is Sharp break, a drop-off in about 6.5 m of water that rates prime for zander in fall. Warm-month bites cluster around the evening and early morning. Throw a vertical softbait over humps or a deep crankbait until the fish tell you otherwise.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 4.5 m | dusk & dawn | Shoreline point (1.5 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Kesä | 4.5 to 11 m | dusk & dawn | Sharp break (6.5 m) | Vertical softbait over humps, Deep crankbait |
| Syksy | 3.5 to 12 m | dusk & night | Sharp break (6.5 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Talvi | 6 to 12 m | dusk & dawn | Sharp break (6.5 m) | Vertical jig / mormyshka with bait, Slow blade bait |
Spring lake whitefish on Joutsjärvi hold shallow, usually 4.5 to 14 m. They move out to 6 to 20 m in summer and finish the year down in 6 to 20 m. Put Deep basin first on the milk run — a deep basin near 20 m that grades prime for summer. The feeding windows run early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 4.5 to 14 m | midday & dawn | Sharp break (6.5 m) | Small jig + waxworm, Blade bait (small) |
| Kesä | 6 to 20 m chart-limited; documented 12 to 27 m | dawn | Deep basin (20 m) | Blade bait vertical, Small jigging spoon |
| Syksy | 2.5 to 9 m | dusk | Sharp break (6.5 m) | Small spoon (gold), Jig + plastic larva |
| Talvi | 6 to 20 m chart-limited; documented 7.5 to 21 m | midday & dawn | Deep basin (20 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, burbot run shallow here, mostly 6 to 20 m. Summer keeps them at 6 to 20 m, and they winter in 4.5 to 18 m. Spring burbot concentrate at Deep basin, a prime-rated deep basin around 20 m. Fish it in after dark and midday and you'll meet the bite. You won't need more than a heavy jig + cut bait most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 6 to 20 m chart-limited; documented 7.5 to 21 m | night & dusk | Deep basin (20 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Kesä | 6 to 20 m chart-limited; documented 15 to 37 m | night & midday | Deep basin (20 m) | Heavy jig + cut bait |
| Syksy | 6 to 20 m chart-limited; documented 9 to 24 m | night & dusk | Deep basin (20 m) | Glow spoon + minnow head, Blade bait (slow) |
| Talvi | 4.5 to 18 m | night & dusk | Deep basin (20 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 13 features, led in depth by Deep basin at roughly 20 m.
Season dates, license requirements, and size and bag limits for Finland waters are set by the Kalastusrajoitus.fi (official Finnish restriction service) — and special regulations can apply to Joutsjärvi specifically, so confirm the current rules before you fish.
Check the official Finland fishing regulations →
Joutsjärvi is about 66 ft (20 m) deep at its deepest point. The depth chart comes from Finnish Environment Institute (Syke) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Joutsjärvi on syvimmillään noin 20 metriä (66 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Anglers target european perch, northern pike, zander, lake whitefish, burbot on Joutsjärvi. 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.
Back-bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for european perch in spring. Every other rated spot, per species and season, is on the map above.
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 Joutsjärvi is regulated by the Kalastusrajoitus.fi (official Finnish restriction service). Check the official Finland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Enovesi-Keihäsjärvi 4.8 km · Vanjärvi 6.4 km · Pohjanselkä 9.7 km · Nuoramoisjärvi 9.7 km · Pilkanselkä 12.9 km · Sääksjärvi 12.9 km · Hirvijärvi 14.5 km · Auhjärvi 14.5 km · Ylimmäinen 16.1 km · Keskinen 17.7 km · Jääsjärvi 17.7 km · Salajärvi 19.3 km
See how Joutsjärvi stacks up: best zander lakes in Finland · best northern pike lakes in Finland · best european perch lakes in Finland · best lake whitefish lakes in Finland
More water nearby: Lahden seutukunta fishing maps (35 charts). Browse all Finland fishing maps. See every water on DepthScout. Bathymetry credit: Finnish Environment Institute (Syke), Järvien ja jokien syvyysaineisto, CC BY 4.0. 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.