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Jarnnagleholmen Lighthouse

Fl White 30s🇳🇴Bømlo, NOOperational

Location & Light Range

About Jarnnagleholmen Lighthouse

The Jarnnagleholmen lighthouse stands 25 meters tall, its cylindrical cast iron tower painted red with a single white horizontal band. This structure is topped by a lantern and a double gallery, with the light positioned 15 meters above the water. It emits a white flash every 30 seconds, visible for 11.9 nautical miles. The lighthouse is located on a small islet off the south coast of Gisøy, an island at the northwestern corner of Bømlo. The site itself is open to visitors, though the tower remains closed. Access to the islet is primarily by boat.

Why it matters: This lighthouse aids navigation around the hazardous islet at the south coast of Gisøy, marking the northwestern edge of Bømlo's waterways.

Light & Optic

Characteristic Signature
Fl White 30s
Flash Type
Flashing
Light Color
White
Interval
30s
Raw Code
Fl W 30s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Bømlo
Country
🇳🇴Norway
Region
Vestland
Sea Region
islet off the south coast of Gisøy, an island at the northwestern corner of Bomlø
Latitude
59.8815°
Longitude
5.0743°

References & Identifiers

Nearest Port
Bomlo(6.1 km)
Admiralty No.
B3751
NGA No.
3380
ARLHS No.
NOR-216

Tower & Structure

Tower Height
25m
Tower Shape
cylindrical
Tower Color
red
Material
cast iron

Structure: round cast iron tower with lantern and double gallery, painted red with one white horizontal band

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Jarnnagleholmen Lighthouse at night?+
Jarnnagleholmen displays the characteristic Fl White 30s. 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 Jarnnagleholmen Lighthouse guide vessels into?+
Jarnnagleholmen Lighthouse assists vessels approaching 5 nearby ports. The closest is Brandasund at 1.4 NM to the NE. Other ports served include Rubbestadneset (6.8 NM ESE), Salthella (7.3 NM N), BEKKJARVIK (8.4 NM NNE), Fitjar (9.4 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jarnnagleholmen Lighthouse still active and maintained?+
Yes, Jarnnagleholmen 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 Jarnnagleholmen Lighthouse?+
You can track vessels near Jarnnagleholmen 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.