Cairns Great Barrier Reef fishing forecast
Cairns Great Barrier Reef is a saltwater fishing spot in North Queensland, Australia. Anglers here target Black Marlin, Indo-Pacific Sailfish, Giant Trevally, Wahoo. The most productive months are typically September, October, November, December, January.
Today’s verdict
Ranks #175 of 437 spots FishRadar scored worldwide today
Trending up — 7 points above 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 | 22.1 °C |
|---|---|
| Wind | 21 km/h from ESE, gusting 32 km/h |
| Wave height | 0.6 m at 6 s |
| Current | 0.13 m/s toward SSE |
| Pressure | 1015 hPa |
| Cloud cover | 6% |
| Chlorophyll | 1.77 mg/m³ |
| Salinity | 35.5 PSU |
| Mixed-layer depth | 13 m |
| UV index | 8 |
| Wind sea | 0.2 m at 2 s |
| Ground swell | 0.5 m at 6 s from E |
| Current shear (surface vs 50 m) | 0.13 → 0.03 m/s |
The water here is 2.1 °C cooler than the September average of 24.2 °C. Cooler-than-normal water slows the bite for warm-water species and holds cool-water species shallower for longer. The water is mixed to about 32.7 m, with the thermocline below that.
Updated 1 h ago.
What the score means at Cairns Great Barrier Reef
Cairns Great Barrier Reef currently scores 72 out of 100 (Good). Water temperature is 22.1 °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 +18.0
- moving water concentrates bait
- Waves +9.0
- swell energy stirring the water column
- Wind +7.2
- surface chop, oxygen and bait drift
- Thermal front +4.8
- temperature edges concentrate bait and predators
What’s biting now
The model expects today: black-marlin, sailfish, wahoo, giant-trevally, spotted-mackerel, redthroat-emperor, grass-emperor, school-mackerel
Bite windows
Best months for Cairns Great Barrier Reef:
Score history at this spot
30 days tracked at this exact location
Best recent day: 2026-08-31, 96/100
2 day(s) at 70+ in the tracked period
+5 points vs the same day last week
About this spot
Reefs concentrate fish around coral and rocky structure, drop-offs, and the channels and edges where current funnels bait. Work the reef edges and adjacent deeper water, and fish the moving tide.
Access & shore
Best reached by boat · offshore-only
What you can catch
-
Istiompax indica
-
Istiophorus platypterus
-
Caranx ignobilis
-
Acanthocybium solandri
Best months by species at Cairns Great Barrier Reef
| Black MarlinIstiompax indica | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indo-Pacific SailfishIstiophorus platypterus | ||||||||||||
| Giant TrevallyCaranx ignobilis | ||||||||||||
| WahooAcanthocybium solandri |
Typical months; local seasons and closures apply.
Local regulations
| Species | Bag limit | Min size | Open season |
|---|---|---|---|
| Black MarlinOfficial source | 1/day | — | — |
| CORRECTED 2026-08-06. NSW allows one black marlin per angler per day (the limit is one of EACH of striped, black and blue marlin) with no minimum length; for marlin the NSW possession limit equals the bag limit. Queensland publishes no marlin-specific size or possession limit in its tidal limits table. Tag-and-release is the overwhelming norm in Australian game fishing and most tournaments require it, but it is a convention, not the law in NSW. Other states were not verified in this round. | |||
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 Cairns Great Barrier Reef 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 1657 km of Cairns Great Barrier Reef.
-
GBR Cairns Edge
Lizard Island
Townsville Reef Access
Broken River Eungella QLD
Weipa Gulf of Carpentaria
Fraser Island
Noosa Queensland
Gold Coast Seaway
Adelaide River NT
Daly River NT
Frequently asked questions
What fish can you catch at Cairns Great Barrier Reef?
Anglers at Cairns Great Barrier Reef target Black Marlin, Indo-Pacific Sailfish, Giant Trevally and Wahoo.
When is the best time to fish Cairns Great Barrier Reef?
The most productive months at Cairns Great Barrier Reef are typically September, October, November, December, January.
What is the fishing forecast for Cairns Great Barrier Reef right now?
Cairns Great Barrier Reef currently scores 72 out of 100, based on live ocean and weather conditions — see the full breakdown on this page.
Can you fish Cairns Great Barrier Reef from shore?
Cairns Great Barrier Reef is best reached by boat; the scored water sits off a offshore-only.
Is the thermocline set up at Cairns Great Barrier Reef right now?
Not strongly right now — the water column is fairly mixed, so fish are less depth-locked.
Fishing guides for this spot
- How to Catch Wahoo: Chasing the Ocean's Fastest SprinterHow to Read Tides for FishingHow to Read a Fishing Forecast
Forecasts, not guarantees — check local rules before you fish.