Narrabeen

Northern Beaches, NSW · Relative shark interaction risk assessment

← All beachesMOCKAssessed 18 Oct 2026, 12:02 pm·Model 0.1.0-dev

Interaction risk

MODERATE37.2/100

Experimental · uncalibrated

Combined confidence: MODERATE(58%)

Exposure 0.60

Hazard 0.52

Why?

•No live shark detections — this is not an operational alert
•Water temperature (~19.9°C) favours great white shark thermal suitability
•Elevated expected human water use

Shark interaction risk is assessed as MODERATE (public index 37.2/100) with moderate combined confidence. Primary drivers: No live shark detections — this is not an operational alert; Water temperature (~19.9°C) favours great white shark thermal suitability; Elevated expected human water use. No live shark-detection feed is connected. This is an experimental development assessment, not an operational warning. Always follow lifeguard instructions, beach closures, and official NSW SharkSmart advice. vShark is not a government or SLSA product.

Location map

NSW Beachwatch — recreational water quality

Official pollution forecast and latest lab result from NSW Beachwatch. This is not a vShark score and not a swim clearance. Always follow Beachwatch, flags and lifeguards. Lagoon sites are shown separately from ocean beaches.

Pollution forecast

UnlikelyLIVE

18 Oct 2026, 6:00 am

Latest lab result

—UNAVAILABLE

Narrabeen Lagoon (Birdwood Park): pollution Likely — lagoon, not the ocean beach.

Sites: North Narrabeen Beach, Narrabeen Lagoon (Birdwood Park)

Water quality © NSW Beachwatch (DCCEEW), CC BY 4.0.

Species contributions (development model)

Great white sharkPs 0.65 · contrib 0.357

Thermal 0.63 · Detection 0.00

Bull sharkPs 0.35 · contrib 0.055

Thermal 0.13 · Detection 0.00

Tiger sharkPs 0.46 · contrib 0.104

Thermal 0.35 · Detection 0.00

Recent detections

No detection events in local store.

Ocean / environmental observations

Data gaps

turbidity proxy
live detections
recent detections

Missing data reduces confidence; it does not mean low risk.

Recent assessment history

When	Band	Index	Confidence	Model
18 Oct 2026, 12:02 pm	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 11:02 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 10:25 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 9:41 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 8:02 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 7:02 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 6:05 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 4:57 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 4:02 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 2:06 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 1:35 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 1:02 am	MODERATE	37.2	MODERATE	0.1.0-dev
18 Oct 2026, 12:02 am	MODERATE	36.9	MODERATE	0.1.0-dev
17 Oct 2026, 11:20 pm	MODERATE	36.9	MODERATE	0.1.0-dev