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Læsø Rende Lighthouse

LFl (2) White, Red, Green 20s🇩🇰DKOperational

Location & Light Range

About Læsø Rende Lighthouse

This concrete, cylindrical tower stands 26 meters tall, with its light situated 25 meters above sea level. Built in 1965, it replaced a lightship station that had operated since 1887. The lighthouse is positioned in the Læsø Rende channel, approximately 7 kilometers from the mainland and 11 kilometers from the western point of Læsø. Its lantern emits two white, red, or green flashes every 20 seconds. The structure consists of a round tower with a lantern, mounted on a circular concrete caisson.

Why it matters: The lighthouse guides vessels through the Læsø Rende channel, a significant waterway between Læsø island and the Danish mainland.

Light & Optic

Characteristic Signature
LFl (2) White, Red, Green 20s
Flash Type
Long Flash
Light Color
White, Red, Green
Flash Count
2 flashes
Interval
20s
Raw Code
LFl(2) WRG 20s
Focal Height
25m
Geographic Range
14.3NM

Construction & History

Year Built
1965

Significant events: replaced a lightship station established in 1887, two lightships that served this station survive

References & Identifiers

Nearest Port
Asaa(6.4 km)
Admiralty No.
C0061
NGA No.
1696
ARLHS No.
DEN-021

Tower & Structure

Tower Height
26m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round cylindrical tower with lantern, mounted on a circular concrete caisson

Location

Country
🇩🇰Denmark
Sea Region
The Læsø Rende channel between Læsø and the mainland, about 7 km east of the mainland and 11 km west of the western point of Læsø.
Latitude
57.2185°
Longitude
10.5708°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Læsø Rende Lighthouse at night?+
Læsø Rende displays the characteristic LFl (2) White, Red, Green 20s — 2 white, red, green flashes every 20 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. The white, red, green color may indicate a specific sector or warning zone.
Which ports and harbors does Læsø Rende Lighthouse guide vessels into?+
Læsø Rende Lighthouse assists vessels approaching 5 nearby ports. The closest is Asaa at 6.5 NM to the SW. Other ports served include Sæby (7 NM N), Vesterø Havn, Læsø (12.4 NM ENE), Frederikshavn (13.1 NM N), Hals (16.2 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Læsø Rende Lighthouse still active and maintained?+
Yes, Læsø Rende 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 Læsø Rende Lighthouse?+
Læsø Rende 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 Læsø Rende Lighthouse?+
You can track vessels near Læsø Rende 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.