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Onslow Lighthouse

Fl W 2s🇦🇺Western Australia, AUOperational

Location & Light Range

About Onslow Lighthouse

This white metal tower stands 25 meters high and has an octagonal shape. It emits a white flash characteristic. The lighthouse has a focal height of 25 meters and a geographic range of 15 nautical miles. It is operational.

Light & Optic

Characteristic Signature
Fl W 2s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
2s
Raw Code
Fl
Focal Height
25m
Geographic Range
15NM

Location

City
Western Australia
Country
🇦🇺AU
Latitude
-21.6441°
Longitude
115.1173°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
25m
Tower Shape
octagonal
Tower Color
white
Material
metal

Structure: White metal tower; 59

References & Identifiers

Admiralty No.
Q1704.1
NGA No.
9296
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Frequently Asked Questions

How do mariners identify Onslow Lighthouse at night?+
Onslow displays the characteristic Fl W 2s — 1 white flash every 2 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area.
Which ports and harbors does Onslow Lighthouse guide vessels into?+
Onslow Lighthouse assists vessels approaching 5 nearby ports. The closest is Onslow at 0.3 NM to the NNW. Other ports served include Ashburton (5.9 NM WSW), Thevenard Island (13.8 NM NNW), Airlie Terminal (18.9 NM N), Griffin Venture (oil terminal) (37.3 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Onslow Lighthouse still active and maintained?+
Yes, Onslow Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Onslow Lighthouse?+
You can track vessels near Onslow Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.