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Årøsund Lighthouse

Oc White/Red/Green 5s🇩🇰Haderslev Municipality, DKOperational

Location & Light Range

About Årøsund Lighthouse

The round, cylindrical cast iron tower at Årøsund was built in 1905. Standing 10 meters tall with a focal height of 9 meters, it displays a directional light with a geographic range of 10 nautical miles. The light exhibits one white flash, or a white, red, or green sector, every 5 seconds to guide vessels. This prefabricated structure was manufactured by the German firm Pintsch. The site is open to the public, allowing visitors to approach the base of the tower, though interior access is not permitted.

Why it matters: This lighthouse is important for local navigation, providing directional guidance with its white, red, or green sectors. Its construction as a prefabricated cast iron tower represents an early 20th-century engineering approach.

Light & Optic

Characteristic Signature
Oc White/Red/Green 5s
Flash Type
Occulting
Light Color
White/Red/Green
Flash Count
1 flash
Interval
5s
Raw Code
Oc(1) WRG 5s
Focal Height
9m
Geographic Range
10NM

Construction & History

Year Built
1905

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
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
On the south mole at Årøsund
Latitude
55.2622°
Longitude
9.7122°

References & Identifiers

Nearest Port
Arosund(0.1 km)
Admiralty No.
C0970
ARLHS No.
DEN-100
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Frequently Asked Questions

How do mariners identify Årøsund Lighthouse at night?+
Årøsund displays the characteristic Oc White/Red/Green 5s — 1 white/red/green flash every 5 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 Årøsund Lighthouse guide vessels into?+
Årøsund Lighthouse assists vessels approaching 5 nearby ports. The closest is Årosund at 0.8 NM to the SSE. Other ports served include Åro (1.3 NM ENE), Assens (6 NM E), Haderslev (7.2 NM W), Hejls (8.2 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Årøsund Lighthouse still active and maintained?+
Yes, Årøsund 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 Årøsund Lighthouse?+
Årøsund 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 Årøsund Lighthouse?+
You can track vessels near Årøsund 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.