Sydney Deep Water fishing forecast
Sydney Deep Water is a saltwater fishing spot in New South Wales, Australia. Anglers here target Yellowfin Tuna, Mahi-Mahi, Atlantic Blue Marlin, Striped Marlin. The most productive months are typically November, December, January, February, March, April.
Today’s verdict
Ranks #413 of 437 spots FishRadar scored worldwide today
Trending down — 7 points below this spot’s 7-day average
Score confidence ±4 points, from 8 live signals
The statistical model disagrees with the physics model here today — treat this score with extra caution.
Current conditions
| Sea surface temp | 18.1 °C |
|---|---|
| Wind | 22 km/h from SSE, gusting 37 km/h |
| Wave height | 2.4 m at 7 s |
| Current | 0.06 m/s toward ESE |
| Pressure | 1024 hPa |
| Depth | 569 m |
| Cloud cover | 0% |
| Chlorophyll | 0.30 mg/m³ |
| Salinity | 35.7 PSU |
| Mixed-layer depth | 67 m |
| UV index | 5 |
| Wind sea | 0.5 m at 3 s |
| Ground swell | 2.4 m at 7 s from SSE |
| Current shear (surface vs 50 m) | 0.06 → 0.00 m/s |
The water here is 1.9 °C warmer than the September average of 16.3 °C. Warmer-than-normal water pushes cool-water species deeper and brings warm-water species in earlier than the calendar suggests. The water is mixed to about 113.3 m, so surface temperature carries well down the water column.
Updated 1 h ago.
What the score means at Sydney Deep Water
Sydney Deep Water currently scores 49 out of 100 (Good). Water temperature is 18.1 °C. 8 forecast signals are active in this score.
- Water temperature +25.0
- how close the water is to this species mix’s comfort band
- Chlorophyll +18.0
- plankton density — the base of the food chain
- Current +6.9
- moving water concentrates bait
- Wind +6.7
- surface chop, oxygen and bait drift
- Waves +3.5
- swell energy stirring the water column
- Barometric pressure +3.3
- falling pressure often triggers feeding
What’s biting now
The model expects today: blue-groper-eastern, mado-sweep, crimsonband-wrasse, morwong-red, australian-herring, cobbler, silver-trevally, australian-salmon
Bite windows
Best months for Sydney Deep Water:
Score history at this spot
30 days tracked at this exact location
Best recent day: 2026-08-28, 70/100
1 day(s) at 70+ in the tracked period
About this spot
Open coastal saltwater — conditions and safety depend heavily on the live wind, wave, and tide forecast, so check them before you head out.
Approximate bottom depth: 569 m
Access & shore
Best reached by boat · offshore-only
What you can catch
-
Thunnus albacares
-
Coryphaena hippurus
-
Makaira nigricans
-
Kajikia audax
Best months by species at Sydney Deep Water
| Yellowfin TunaThunnus albacares | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mahi-MahiCoryphaena hippurus | ||||||||||||
| Atlantic Blue MarlinMakaira nigricans | ||||||||||||
| Striped MarlinKajikia audax |
Typical months; local seasons and closures apply.
Local regulations
Licensing:
- saltwater-recreational — residents Licensing is state-level, not federal. NSW: the NSW Recreational Fishing Fee covers salt and fresh water. VIC: Victorian Recreational Fishing Licence. QLD: no general recreational licence for most saltwater fishing. WA, SA, TAS, NT: state-specific licences and permits. Bag, size and possession limits always come from the state you are fishing in., non-residents The same state rules apply to visitors, and a short-term licence can normally be bought online from the state authority before you fish.
- freshwater-recreational — residents Inland fishing usually needs a state recreational licence (NSW, VIC) or an angler permit (NT, parts of QLD). Freshwater closed seasons are separate from tidal ones — Queensland, for example, closes barramundi in fresh water and in tidal water on the same dates but publishes them on different pages., non-residents Visiting anglers must hold the relevant state licence or permit.
FishRadar regulations are summaries for informational purposes only. Australian fishing rules are set by each state and vary by zone, and this national pack shows the strictest figure we have verified rather than your state's own. Always verify with the relevant state authority (NSW DPIRD, QLD DPI, VFA, WA DPIRD, SA PIRSA, NRE Tasmania, NT Fisheries) before fishing.
Check Sydney Deep Water before you go
Live scores update through the day. Get the full forecast, bite windows, and your own saved spots in the FishRadar app.
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Nearby spots
Explore 10 more fishing spots within 560 km of Sydney Deep Water.
-
Port Stephens NSW
Port Stephens Gamefish
Port Stephens NSW Australia
Jervis Bay NSW
Port Macquarie NSW
Merimbula NSW South
Lake Eucumbene NSW
Snowy River NSW
Lake Hume Victoria
Lakes Entrance Victoria
Frequently asked questions
What fish can you catch at Sydney Deep Water?
Anglers at Sydney Deep Water target Yellowfin Tuna, Mahi-Mahi, Atlantic Blue Marlin and Striped Marlin.
When is the best time to fish Sydney Deep Water?
The most productive months at Sydney Deep Water are typically November, December, January, February, March, April.
What is the fishing forecast for Sydney Deep Water right now?
Sydney Deep Water currently scores 49 out of 100, based on live ocean and weather conditions — see the full breakdown on this page.
Can you fish Sydney Deep Water from shore?
Sydney Deep Water is best reached by boat; the scored water sits off a offshore-only.
Is the thermocline set up at Sydney Deep Water right now?
Not strongly right now — the water column is fairly mixed, so fish are less depth-locked.
How deep is the water at Sydney Deep Water?
The scored point sits over roughly 569 m of water. Depth shapes which species hold here and how the thermocline forms.
Fishing guides for this spot
- How to Catch Yellowfin Tuna: Chasing the Blue-Water BrawlerHow to Catch Mahi-Mahi / Dorado: Chasing the Electric-Green Ghosts of the BluewaterHow to Read Tides for Fishing
Forecasts, not guarantees — check local rules before you fish.