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102,890-acre Exmouth Gulf. Sector 04 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. Sector 04 trip-scale surveyed footprint within Exmouth Gulf. A large tropical gulf with mangrove shallows, tidal channels, reefward points and deeper northern access. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 319 ft. The depth chart comes from Geoscience Australia / AusSeabed 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.
The outline encloses 102,896 acres, worked by 56.5 miles of shoreline. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. About 6% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. End to end it runs roughly 20.1 mi, about 12.9 mi across. Exmouth Gulf - Sector 08 sits 12 mi south — the closest neighbouring chart.
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 |
|---|---|---|
| barramundi (Barramundi) | official species listing | — |
| golden snapper (Golden Snapper) | official species listing | — |
| black jewfish (Black Jewfish) | official species listing | — |
| king threadfin (King Threadfin) | official species listing | — |
| queenfish (Queenfish) | official species listing | — |
| giant trevally (Giant Trevally) | official species listing | — |
| mangrove jack (Mangrove Jack) | official species listing | — |
| Spanish mackerel (Narrow-barred Spanish Mackerel) | official species listing | — |
| coral trout (Coral Trout) | official species listing | — |
Official species-evidence source.
The spring pattern is a shallow one: barramundi in 2 to 18 ft. The depth story barely changes: 2 to 18 ft through summer, 11 to 35 ft in winter. Top water on the chart: Sharp break, a drop-off in the 10 ft range, good in fall. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 18 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 2 to 18 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Winter | 11 to 35 ft | midday | Sharp break (17 ft) | see map |
Start shallow in spring: golden snapper sit in 8 to 35 ft that time of year. They don't go far with the seasons — 8 to 35 ft covers summer, 21 to 80 ft covers winter. The spot to know is Sharp break, a drop-off in about 51 ft of water that rates good for golden snapper in fall. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (51 ft) | see map |
| Winter | 21 to 80 ft | midday | Sharp break (51 ft) | see map |
When the water first warms, black jewfish slide up into 8 to 35 ft. There's no big seasonal slide here — summer means 8 to 35 ft, winter 21 to 90 ft. If you only fish one area, make it Sharp break: a drop-off around 51 ft that scores good in fall. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 8 to 63 ft | dawn & dusk | Sharp break (51 ft) | see map |
| Winter | 21 to 90 ft | midday | Sharp break (51 ft) | see map |
The spring pattern is a shallow one: king threadfin in 2 to 16 ft. The depth story barely changes: 2 to 16 ft through summer, 10 to 35 ft in winter. Top water on the chart: Sharp break, a drop-off in the 10 ft range, good in fall. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 2 to 16 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Winter | 10 to 35 ft | midday | Sharp break (10 ft) | see map |
Early season queenfish use the shallows, holding in 3 to 25 ft. Even in summer they hold at 3 to 25 ft; winter keeps them in 15 to 55 ft. The chart's best answer is Sharp break — drop-off, 10 ft, prime for fall. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 3 to 25 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 3 to 39 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Winter | 15 to 55 ft | midday | Sharp break (51 ft) | see map |
The spring pattern is a shallow one: giant trevally in 4 to 30 ft. The depth story barely changes: 4 to 30 ft through summer, 18 to 80 ft in winter. Top water on the chart: Sharp break, a drop-off in the 51 ft range, prime in fall. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Summer | 4 to 30 ft | dawn & dusk | Sharp break (10 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (51 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (51 ft) | see map |
Exmouth Gulf - Sector 04 also holds mangrove jack (2 to 18 ft in summer), narrow-barred spanish mackerel (8 to 45 ft in summer), coral trout (8 to 35 ft in summer). Pick any of them on the map above for rated spots and bait picks.
15 pieces of structure are mapped here — Shoreline point, around 75 ft, is the deepest of them.
No facility from the cited Western Australia Department of Transport Public Boat Ramps (DOT-033) 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://catalogue.data.wa.gov.au/dataset/boat-ramps
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Western Australia waters are set by the WA DPIRD (current recreational-fishing rules) — and special regulations can apply to Exmouth Gulf - Sector 04 specifically, so confirm the current rules before you fish. Check WA DPIRD's live regional guide, licences, demersal-management measures, species limits, seasonal and spatial closures, marine parks, protected species and permitted gear before every trip. Species available to target can change by bioregion and date; a regional occurrence record is not an open-season signal. A directly measured contour, fishing spot or access lead never grants fishing, retention, port entry, parking or launching permission.
Check the official Western Australia fishing regulations →
WA DPIRD current recreational-fishing guides →
Check special-area and water-specific rules →
Exmouth Gulf - Sector 04 is about 319 ft (97 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 Western Australia Department of Primary Industries and Regional Development regional evidence informs the barramundi, golden snapper, black jewfish, king threadfin, queenfish, giant trevally, mangrove jack, narrow-barred spanish mackerel, coral trout roster for Exmouth Gulf - 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.
Sharp break is the top-rated area: a drop-off in about 10 ft of water that rates prime for queenfish in fall. The interactive chart above rates every spot for each species and season.
For barramundi, 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 Exmouth Gulf - Sector 04 is regulated by the WA DPIRD (current recreational-fishing rules). Check the official Western Australia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Exmouth Gulf - Sector 08 12 mi · Exmouth Gulf - Sector 03 18 mi · Exmouth Gulf - Sector 07 21 mi · Exmouth Gulf - Sector 12 26 mi · Beadon Bay 31 mi · Exmouth Gulf - Sector 11 32 mi · Exmouth Gulf - Sector 02 33 mi · Exmouth Gulf - Sector 15 45 mi · Exmouth Gulf - Sector 19 57 mi · Bandicoot Bay 66 mi · Claret Bay 96 mi · Diver Inlet 104 mi
See how Exmouth Gulf - Sector 04 stacks up: best barramundi lakes in Western Australia · best golden snapper lakes in Western Australia · best black jewfish lakes in Western Australia · best king threadfin lakes in Western Australia
Browse all Western Australia 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.