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24,453-acre Loviisa-Porvoo. Sector 04 Finland coastal fishing map with an exact official national water-body boundary, EMODnet 2024 official Finnish hydrographic chart/DTM assessed contours, source-assessed fishing spots, official regional fish evidence, seasonal forage guidance, public-access review and current-rule links. Official Syke VHS 2022 named coastal water in Gulf of Finland. 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 55 m. The depth chart comes from EMODnet, with national hydrographic source-reference audit official hydrographic-chart depth models, so the contours are chart-derived rather than computer-modeled; no directly measured sounding coverage is claimed. What the data behind the map says about each species, season by season:
Vesi piirtyy 9 886 hehtaarin laajuisena, rantaa 95.1 km, ja saaria on 130. Rantaviiva on voimakkaasti rikkonainen (indeksi 2.7) — lahtia ja niemiä kaikkialla, mikä moninkertaistaa kalastettavan reunan. Noin 8% pinnasta on matalampaa kuin ~5 m — siellä ruokaketju elää. Päästä päähän vesi mittaa noin 14.2 km, leveimmillään 12.1 km. Lähin kartoitettu vesi on Loviisa-Porvoo - Sector 08, 9.7 km etelään.
Ilmainen interaktiivinen kalastuskartta — Loviisa-Porvoo — Sector 04, Suomi: virallisiin merikartta- ja syvyysmallilähteisiin tarkistetut syvyyskäyrät 55 metriin (182 jalkaa) asti, parhaat kalapaikat lajeille ahven, kuha, hauki ja muut. Syvyyskäyrät perustuvat Syken todellisiin syvyysmittauksiin (CC BY 4.0). Käytä karttaa suuntaa-antavana, älä koskaan navigointiin.
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 | — |
| (Zander) | official species listing | — |
| (Northern Pike) | official species listing | — |
| (Atlantic Herring) | official species listing | — |
| (European Whitefish) | official species listing | — |
| (European Flounder) | official species listing | — |
| (Sea Trout) | official species listing | — |
| (European Smelt) | official species listing | — |
Official species-evidence source.
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 Weed flat first on the milk run — a weed flat near 2 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.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 3.5 m | midday & dawn | Weed flat (2 m) | Small jig + curly tail, Inline spinner #1-2 |
| Kesä | 2.5 to 8.5 m | dawn | Sharp break (3.5 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Syksy | 3 to 10 m | midday | Sharp break (3.5 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 3.5 to 10 m | midday & dawn | Offshore hump (8.5 m) | Tungsten jig + maggots, Small balance jig |
Early season zander use the shallows, holding in 1 to 4.5 m. Expect a summer slide to 4.5 to 11 m, then a winter hold in 6 to 12 m. Put Offshore hump first on the milk run — an offshore hump near 8.5 m that grades prime for summer. In summer the feeding windows fall in the evening and early morning. Tie on a vertical softbait over humps or a deep crankbait and you're in the game.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 4.5 m | dusk & dawn | Rock reef (0.5 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Kesä | 4.5 to 11 m | dusk & dawn | Offshore hump (8.5 m) | Vertical softbait over humps, Deep crankbait |
| Syksy | 3.5 to 12 m | dusk & night | Sharp break (3.5 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Talvi | 6 to 12 m | dusk & dawn | Offshore hump (8.5 m) | Slow blade bait |
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 Weed flat. It's a weed flat holding about 2 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.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 0.5 to 2.5 m | midday & dawn | Weed flat (2 m) | #5 inline spinner, Spoon (red/white) |
| Kesä | 2.5 to 6 m | dawn & dusk | Weed flat (2.5 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 2 to 5.5 m | midday & dawn | Sharp break (3.5 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1.5 to 4.5 m | midday | Weed flat (2 m) | Large jigging spoon |
Spring atlantic herring on Loviisa-Porvoo - Sector 04 hold shallow, usually 1.5 to 7.5 m. By summer they slide out to 4.5 to 15 m, and by winter most fish are in 6 to 18 m. The chart's best answer is Sharp break — drop-off, 6.5 m, good for summer. Prime time lands in early morning and the evening. The summer box starts with a herring feather rig or a small silver jig.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1.5 to 7.5 m | dawn & dusk | Weed flat (2 m) | Small herring feather rig, Micro jig rig |
| Kesä | 4.5 to 15 m | dawn & dusk | Sharp break (6.5 m) | Herring feather rig, Small silver jig |
| Syksy | 3 to 12 m | dawn & dusk | Sharp break (3.5 m) | Small feather rig, Compact silver spoon |
| Talvi | 6 to 18 m | midday | Sharp break (6.5 m) | Small silver jig, Sparse feather rig |
Spring puts european whitefish in skinny water — 3 to 12 m is the zone. Warm water sends them out to 8.5 to 24 m; cold water stacks them in 5.5 to 18 m. Sharp break is the standout, a drop-off at roughly 3.5 m, rated good for spring european whitefish. Plan around early morning and the evening in the warm months. A small vertical spoon or a micro jig covers the summer program.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 3 to 12 m | dawn & dusk | Sharp break (3.5 m) | Small silver spoon, Micro blade bait |
| Kesä | 8.5 to 24 m | dawn & dusk | Sharp break (26 m) | Small vertical spoon, Micro jig |
| Syksy | 1.5 to 11 m | dusk & dawn | Sharp break (3.5 m) | Small gold spoon, Micro jig |
| Talvi | 5.5 to 18 m | midday | Offshore hump (8.5 m) | Small jigging spoon |
Spring puts european flounder in skinny water — 1.5 to 7.5 m is the zone. As the season builds they drop to 2 to 11 m, wintering in 4.5 to 15 m. Summer european flounder concentrate at Feeding flat, a prime-rated feeding flat around 9 m. Warm-month bites cluster around early morning and the evening. A bottom jig with spinner blade covers the summer program.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1.5 to 7.5 m | dusk | Sharp break (3.5 m) | Small bucktail dragged on bottom |
| Kesä | 2 to 11 m | dawn & dusk | Feeding flat (9 m) | Bottom jig with spinner blade |
| Syksy | 2.5 to 12 m | dusk | Sharp break (3.5 m) | Compact bottom jig |
| Talvi | 4.5 to 15 m | midday | Sharp break (6.5 m) | Small bottom jig |
Loviisa-Porvoo - Sector 04 also holds sea trout (4.5 to 15 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.
Structure-wise the chart holds 17 features, led in depth by Deepest basin at roughly 49 m.
No active municipality-, consortium-, or state-owned LIPAS fishing, boating, beach, swimming, canoe or motor-boat facility 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, permits 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 Finland waters are set by the Kalastusrajoitus.fi (official current Finnish fishing-restriction service) — and special regulations can apply to Loviisa-Porvoo - Sector 04 specifically, so confirm the current rules before you fish. Check Kalastusrajoitus.fi, current protection periods and permit requirements before every Finnish coastal trip. Local no-fishing areas, river-mouth restrictions, protected species, minimum sizes, seasonal closures, gear rules, the fisheries-management fee and water-owner permissions may apply. A mapped hydrographic contour, fishing-spot marker or nearby LIPAS public facility is planning context only and never grants fishing, retention, shoreline entry, parking, launching or safe-navigation permission.
Check the official Finland fishing regulations →
Metsähallitus Eräluvat current fishing guidance →
Check special-area and water-specific rules →
Check official shore-access information →
Loviisa-Porvoo - Sector 04 is about 182 ft (55 m) deep at its deepest point. The depth chart comes from EMODnet, with national hydrographic source-reference audit official hydrographic-chart depth models, so the contours are chart-derived rather than computer-modeled; no directly measured sounding coverage is claimed.
Loviisa-Porvoo - Sector 04 on syvimmillään noin 55 metriä (182 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Official coastal monitoring from Finland national fisheries and coastal monitoring agencies informs the european perch, zander, northern pike, atlantic herring, european whitefish, european flounder, sea trout, european smelt roster for Loviisa-Porvoo - Sector 04. 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. 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 Loviisa-Porvoo - Sector 04 is regulated by the Kalastusrajoitus.fi (official current Finnish fishing-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.
Loviisa-Porvoo - Sector 08 6 mi · Loviisa-Porvoo - Sector 03 6 mi · Pyhtää-Kotka ulko - North West 7 mi · Ahvenkoskenlahti 8 mi · Pyhtää-Kotka ulko - Central West 9 mi · Lappominjärvi Lappomträsket 9 mi · Loviisa-Porvoo - Sector 07 10 mi · Särkjärvi 15 mi · Sarvalaxträsket 15 mi · Pyhtää-Kotka ulko - North 16 mi · Pyhtää-Kotka ulko - Central 16 mi · Hattarjärvi 16 mi
See how Loviisa-Porvoo - Sector 04 stacks up: best zander lakes in Finland · best northern pike lakes in Finland · best european perch lakes in Finland · best sea trout lakes in Finland
Browse all Finland fishing maps. See every water on DepthScout. Bathymetry credit: EMODnet, with national hydrographic source-reference audit EMODnet Bathymetry DTM 2024 mean-depth grid — official Finnish hydrographic chart/DTM assessed (Lowest Astronomical Tide (LAT); 99% from official hydrographic-chart depth models, 1% source-interpolated; no directly measured sounding coverage is claimed). 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.