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25,538-acre Western Port. Northwest Australian saltwater fishing map showing only directly measured AusBathyTopo 2026 cells, source-qualified fishing spots, official regional fish evidence, seasonal forage context, access guidance and current-rule links. Northwest trip-scale surveyed footprint within Western Port. A tidal bay of branching channels, extensive flats, islands and high-current ocean entrances. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 69 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 25,539 acres wrapped in 34.9 miles of bank. With a 1.6 development index there's bank structure worth casting at, in moderation. 12% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 14.7 mi with a 4.2-mi widest point. If the bite dies, Port Phillip - Southeast is 4 mi to the southwest.
Regional occurrence does not mean equal abundance, child-specific catch rate, retention permission or a promised catch. Live state, territory, Commonwealth, protected-area and local rules 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 |
|---|---|---|
| snapper (Australasian Snapper) | official species listing | — |
| King George whiting (King George Whiting) | official species listing | — |
| sand flathead (Sand Flathead) | official species listing | — |
| black bream (Black Bream) | official species listing | — |
| Australian salmon (Australian Salmon) | official species listing | — |
| silver trevally (Silver Trevally) | official species listing | — |
| gummy shark (Gummy Shark) | official species listing | — |
| yellowtail kingfish (Yellowtail Kingfish) | official species listing | — |
Official species-evidence source.
When the water first warms, australasian snapper slide up into 6 to 35 ft. Summer is a 9 to 69 ft game here, winter a 12 to 69 ft one. Start at Sharp break. It's a drop-off holding about 47 ft of water and rates prime come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 35 ft | dawn & dusk | Shoreline point (13 ft) | see map |
| Summer | 9 to 69 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Fall | 5 to 69 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Winter | 12 to 69 ft | midday | Sharp break (47 ft) | see map |
When the water first warms, king george whiting slide up into 3 to 18 ft. By summer they slide out to 8 to 45 ft, and by winter most fish are in 11 to 45 ft. If you only fish one area, make it Sharp break: a drop-off around 37 ft that scores good in summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 18 ft | dawn & dusk | Shoreline point (13 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (37 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (25 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (37 ft) | see map |
Early season sand flathead use the shallows, holding in 8 to 35 ft. Summer is a 14 to 69 ft game here, winter an 8 to 35 ft one. The chart's best answer is Deepest basin — deep basin, 69 ft, prime for summer. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (25 ft) | see map |
| Summer | 14 to 69 ft | dawn & dusk | Deepest basin (69 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (25 ft) | see map |
Start shallow in spring: black bream sit in 2 to 16 ft that time of year. Warm water sends them out to 7 to 35 ft; cold water stacks them in 2 to 16 ft. Top water on the chart: Sharp break, a drop-off in the 25 ft range, good in summer. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Shoreline point (13 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (25 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (25 ft) | see map |
| Winter | 2 to 16 ft | dawn | Shoreline point (13 ft) | see map |
In spring, australian salmon run shallow here, mostly 4 to 30 ft. Summer pushes them deeper, 12 to 69 ft, and winter fish settle into 4 to 30 ft. Sharp break is the standout, a drop-off at roughly 47 ft, rated prime for summer australian salmon. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (13 ft) | see map |
| Summer | 12 to 69 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (13 ft) | see map |
Start shallow in spring: silver trevally sit in 4 to 30 ft that time of year. Warm water sends them out to 12 to 69 ft; cold water stacks them in 16 to 69 ft. Top water on the chart: Sharp break, a drop-off in the 47 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (13 ft) | see map |
| Summer | 12 to 69 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (47 ft) | see map |
| Winter | 16 to 69 ft | midday | Sharp break (47 ft) | see map |
Western Port - Northwest also holds gummy shark (10 to 69 ft in summer), yellowtail kingfish (11 to 69 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 12 structure marks on this chart. The deepest, Deepest basin, sits near 69 ft.
No facility from the cited Victorian recreational boating facilities source was spatially attached within 3 km of this directly measured map footprint during the 2026-09-08 audit. This is an evidence gap, not a claim that public access is absent. Check the official portal, live site signs, tides, ramp condition, vessel suitability, fees, parking, working-port restrictions and landowner permissions before travel: https://discover.data.vic.gov.au/dataset/recreational-boating-facilities
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Victoria waters are set by the Victorian Fisheries Authority (current recreational-fishing guide) — and special regulations can apply to Western Port - Northwest specifically, so confirm the current rules before you fish. Check the live Victorian recreational-fishing guide and licence requirements before every trip. Size and possession limits, closed seasons and waters, marine parks, protected species, permitted equipment and local port or council directions may all apply. A directly measured bathymetry footprint, fishing-spot marker or nearby access lead is planning context only; it never grants fishing, retention, entry, parking or launching permission.
Check the official Victoria fishing regulations →
Victorian Fisheries Authority →
Check special-area and water-specific rules →
Western Port - Northwest is about 69 ft (21 m) deep at its deepest point. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Victorian Fisheries Authority regional evidence informs the australasian snapper, king george whiting, sand flathead, black bream, australian salmon, silver trevally, gummy shark, yellowtail kingfish roster for Western Port - Northwest. 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 47 ft of water that rates prime for australasian snapper in summer. The map above holds the full rated-spot list for every species and season.
For australasian snapper, 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 Western Port - Northwest is regulated by the Victorian Fisheries Authority (current recreational-fishing guide). Check the official Victoria regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Port Phillip - Southeast 4 mi · Port Phillip - East 10 mi · Western Port - West 17 mi · Western Port - North 17 mi · Port Phillip - Central 17 mi · Western Port - Central 20 mi · Western Port - Southwest 22 mi · Port Phillip - Northeast 22 mi · Port Phillip - North 23 mi · Port Phillip - West 26 mi · Western Port - South 27 mi · Western Port - East 27 mi
Browse all Victoria 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.