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Munkholmen Lighthouse

Oc White/Red/Green 6s🇳🇴Trondheim, NOOperational

The Munkholmen lighthouse is situated on a historic island in the Trondheimfjord, approximately 1.2 kilometers northwest of the Trondheim waterfront. The white lantern, topped with a red roof, is mounted directly onto the wall of a 17th-century stone fort. This structure was first lit in 1798. The focal height of the light is 11 meters, with a geographic range of 10.7 nautical miles. It emits an occulting white, red, and green light, with a cycle of 6 seconds. The fort itself has a long history, including service as a prison.

Why it matters: The Munkholmen light is important for safe navigation within the Trondheimfjord, marking the approach to the port city of Trondheim. Its integration into a historic fort makes it a notable cultural and tourist site.

Characteristic Signature
Oc White/Red/Green 6s
Flash Type
Occulting
Light Color
White/Red/Green
Interval
6s
Raw Code
Oc WRG 6s
Focal Height
11m
Geographic Range
10.7NM
First Lit
1798

Significant events: Fort served as a prison

Open to public
Site open, tower closed
Flag
Type
Name
Dist.
Tower Color
white with a red roof
Material
stone

Structure: A lantern, painted white with a red roof, is mounted directly on the wall of a 17th-century stone fort.

City
Trondheim
Country
🇳🇴Norway
Region
Trøndelag
Sea Region
An island in the Trondheimfjord, approximately 1.2 km northwest of the Trondheim waterfront, Norway.
Latitude
63.4510°
Longitude
10.3825°
Nearest Port
Trondheim(0.6 km)
Admiralty No.
L1232
NGA No.
7200
ARLHS No.
NOR-167
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How do mariners identify Munkholmen Lighthouse at night?+
Munkholmen displays the characteristic Oc White/Red/Green 6s. 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/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Munkholmen Lighthouse guide vessels into?+
Munkholmen Lighthouse assists vessels approaching 5 nearby ports. The closest is Trondheim at 0.8 NM to the S. Other ports served include Osen (1.7 NM SE), Vanvikan-Leksvik (7.5 NM NW), Buvika (9.9 NM SW), Melhus (10.5 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Munkholmen Lighthouse still active and maintained?+
Yes, Munkholmen 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.
What shipping routes pass near Munkholmen Lighthouse?+
Munkholmen Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Munkholmen Lighthouse?+
You can track vessels near Munkholmen 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.