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Koksnan Lighthouse

Fl White 5s🇫🇮Saltvik, FIOperational

Location & Light Range

About Koksnan Lighthouse

Also known as: Koksnan (Koxnan)

Koksnan lighthouse is a 15-meter cylindrical skeletal tower, covered by a daymark featuring red and white horizontal bands. Its focal height reaches 17 meters, emitting a white flash every 5 seconds with a geographic range of 12.4 nautical miles. This structure stands on a small island situated approximately 15 kilometers east of the Kallan light, within the Åland Islands region. The site is accessible by boat and open to the public, though the tower itself remains closed. The nearest port is Godby, located 13.9 kilometers away.

Why it matters: The active white flash from Koksnan lighthouse provides a critical reference point for vessels navigating the intricate channels and numerous small islands of the Finnish archipelago east of the Kallan light.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
17m
Light Range
6.2NM (11.5 km)
Geographic Range
12.4NM

Location

City
Saltvik
Country
🇫🇮Finland
Region
Åland Islands
Sea Region
Located on a small island about 15 km east of the Kallan light.
Latitude
60.4682°
Longitude
19.9362°

References & Identifiers

Nearest Port
Godby(13.9 km)
Admiralty No.
C4465
NGA No.
16812
Wikidata
Q61997253 →

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
red and white horizontal bands

Structure: triangular cylindrical skeletal tower covered by a daymark colored with red and white horizontal bands

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Koksnan Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 6.2 nautical miles (approximately 11.5 km), Koksnan is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Koksnan Lighthouse at night?+
Koksnan displays the characteristic Fl White 5s. 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 Koksnan Lighthouse guide vessels into?+
Koksnan Lighthouse assists vessels approaching 5 nearby ports. The closest is Färjsundet at 14.7 NM to the S. Other ports served include Harvaluoto (16.9 NM ESE), Marsund (17.6 NM SSW), Eckerö (17.8 NM SSW), Gottby (Godby) (20.3 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Koksnan Lighthouse still active and maintained?+
Yes, Koksnan 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 Koksnan Lighthouse?+
Koksnan 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 Koksnan Lighthouse?+
You can track vessels near Koksnan 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.