Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Grenjanes Lighthouse

Fl White 20s🇮🇸ISOperational

This cylindrical concrete tower, standing 19 meters tall, was built in 1945 and first lit at the end of World War II. Its white structure is distinguished by a red lantern and appears to have black vertical stripes from a distance. The focal height of the light is 25 meters, casting a white flash every 20 seconds. Situated on a cape at the east entrance to Lónafjörður fjord, it lies about 5 km north of Þórshöfn. The site is open to the public, though the tower itself remains closed.

Why it matters: This lighthouse marks the east entrance to the Lónafjörður fjord, offering a key navigational reference for vessels approaching or departing the area.

Characteristic Signature
Fl White 20s
Flash Type
Flashing
Light Color
White
Interval
20s
Raw Code
Fl W 20s
Focal Height
25m
Geographic Range
14.3NM
Year Built
1945

Significant events: Built during World War II, activated at the end of the war

Open to public
Site open, tower closed
Flag
Type
Name
Dist.
Tower Height
19m
Tower Shape
cylindrical
Tower Color
white with a red lantern, appearing to have black vertical stripes from a distance
Material
concrete

Structure: square cylindrical concrete tower with lantern and gallery

Country
🇮🇸Iceland
Region
Langanesbyggð
Sea Region
Located on a cape at the east entrance to the Lónafjörður fjord, about 5 km north of the fishing town of Þórshöfn, Iceland.
Latitude
66.2580°
Longitude
-15.3366°
Nearest Port
Thorshofn(3.9 km)
ARLHS No.
ICE-042
Live tracking · 50,000+ mariners

Find Grenjanes Lighthouse on the live nautical map

Plan voyages near Iceland, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App
How do mariners identify Grenjanes Lighthouse at night?+
Grenjanes displays the characteristic Fl White 20s. 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. The white color may indicate a specific sector or warning zone.
Which ports and harbors does Grenjanes Lighthouse guide vessels into?+
Grenjanes Lighthouse assists vessels approaching 5 nearby ports. The closest is Thorshofn at 3.7 NM to the S. Other ports served include Raufarhöfn (18.7 NM NW), Bakkafjördur (18.8 NM SE), Kopasker - høfn (26.9 NM W), Vopnafjördur (33.6 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Grenjanes Lighthouse still active and maintained?+
Yes, Grenjanes 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 Grenjanes Lighthouse?+
You can track vessels near Grenjanes 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.