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Årø Lighthouse

Iso White/Red/Green 2s🇩🇰Haderslev Municipality, DKOperational

Location & Light Range

About Årø Lighthouse

Also known as: Aarö

This 13-meter cylindrical cast iron tower, constructed in 1905, began operation in the same year. Its exterior is white with one red horizontal band. The lighthouse is located on the western side of Årø island, marking the 500-meter channel between the island and the mainland near Årøsund. It displays an isophase white, red, or green light with a 2-second cycle. The structure consists of a round cast iron tower with a lantern and gallery, reaching a focal height of 12 meters. Access to the site is permitted, but the tower is not open to visitors.

Why it matters: This lighthouse serves as a navigation aid for vessels using the 500-meter channel between Årø island and the mainland.

Light & Optic

Characteristic Signature
Iso White/Red/Green 2s
Flash Type
Isophase
Light Color
White/Red/Green
Interval
2s
Raw Code
Iso WRG 2s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1905

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
white with a single red horizontal band
Material
cast iron

Structure: round cylindrical cast iron tower with lantern and gallery

Location

City
Haderslev Municipality
Country
🇩🇰Denmark
Region
Region of Southern Denmark
Sea Region
Årø is an island off Årøsund, separated from the mainland by a channel 500 m (0.3 mi) wide. Located on the west side of the island, guiding ships through the channel.
Latitude
55.2572°
Longitude
9.7270°

References & Identifiers

Nearest Port
Aro(0.3 km)
ARLHS No.
DEN-072
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Frequently Asked Questions

How do mariners identify Årø Lighthouse at night?+
Årø displays the characteristic Iso White/Red/Green 2s. 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 Årø Lighthouse guide vessels into?+
Årø Lighthouse assists vessels approaching 5 nearby ports. The closest is Årosund at 0.6 NM to the SW. Other ports served include Åro (1 NM NE), Assens (5.5 NM E), Haderslev (7.7 NM W), Hejls (8.7 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Årø Lighthouse still active and maintained?+
Yes, Årø 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 Årø Lighthouse?+
Årø 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 Årø Lighthouse?+
You can track vessels near Årø 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.