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Nedre Måholmen Lighthouse

Oc White 4s🇳🇴Nærøysund, NOOperational

Location & Light Range

About Nedre Måholmen Lighthouse

Also known as: Nedre Måholmen (Måholmen Range Front)

Nedre Måholmen lighthouse is a white, square tower with a lantern and gallery, standing 7 meters tall. Its focal height reaches 11 meters above sea level, casting a white light that flashes once every 4 seconds. The lighthouse is located on an irregular island off the northeast coast of Kalvøy, near the west end of Måholmen. This active aid to navigation has a geographic range of 10.7 nautical miles. The site is open to visitors, though the tower itself is closed to the public.

Why it matters: This lighthouse is important for marking the irregular island of Måholmen, which presents a hazard to vessels navigating off the northeast coast of Kalvøy.

Light & Optic

Characteristic Signature
Oc White 4s
Flash Type
Occulting
Light Color
White
Interval
4s
Raw Code
Oc W 4s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Nærøysund
Country
🇳🇴Norway
Region
Trøndelag
Sea Region
irregular island off the northeast coast of Kalvøy, near the west end of Måholmen
Latitude
65.0089°
Longitude
10.9472°

References & Identifiers

Nearest Port
Rorvik(11.6 km)
Admiralty No.
L1930
NGA No.
9112

Tower & Structure

Tower Height
7m
Tower Shape
square
Tower Color
white

Structure: square tower with lantern and gallery

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 Nedre Måholmen Lighthouse at night?+
Nedre Måholmen displays the characteristic Oc White 4s. 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 Nedre Måholmen Lighthouse guide vessels into?+
Nedre Måholmen Lighthouse assists vessels approaching 5 nearby ports. The closest is Djupvik at 10.6 NM to the SE. Other ports served include Rørvik (11.5 NM SE), Ottersøy (12.1 NM SE), Ottersøya (12.5 NM SE), Abelvær (17.7 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nedre Måholmen Lighthouse still active and maintained?+
Yes, Nedre Måholmen 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 Nedre Måholmen Lighthouse?+
Nedre Måholmen 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 Nedre Måholmen Lighthouse?+
You can track vessels near Nedre Måholmen 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.