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Tärnö Lighthouse

Oc White/Red/Green 10s🇸🇪Karlshamns kommun, SEOperational

Location & Light Range

About Tärnö Lighthouse

This octagonal wooden lighthouse, standing 6 meters tall, was built in 1910 on the southern tip of Tärnö island. Its focal height reaches 31 meters, casting a light visible for 15.5 nautical miles. The structure is painted white and features a lantern and gallery. A station was first established here in 1887. The lighthouse emits an occulting white, red, and green light on a 10-second cycle, indicating different sectors.

Why it matters: The lighthouse's directional light provides precise guidance for vessels navigating the coastal waters south of Matvik and southeast of Karlshamn.

Light & Optic

Characteristic Signature
Oc White/Red/Green 10s
Flash Type
Occulting
Light Color
White/Red/Green
Interval
10s
Raw Code
Oc WGR 10s
Focal Height
31m
Geographic Range
15.5NM

Construction & History

Year Built
1910

Significant events: station established 1887

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Shape
octagonal
Tower Color
white
Material
wood

Structure: octagonal wood tower with lantern and gallery, painted white

Location

City
Karlshamns kommun
Country
🇸🇪Sweden
Region
Blekinge County
Sea Region
Tärnö is a small island about 3 km south of Matvik and 7 km southeast of Karlshamn. Located on heights near the southern point of the island. The area surrounding the light is a nature reserve.
Latitude
56.1130°
Longitude
14.9712°

References & Identifiers

Nearest Port
Karlshamn(5.3 km)
ARLHS No.
SWE-389
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Frequently Asked Questions

How do mariners identify Tärnö Lighthouse at night?+
Tärnö displays the characteristic Oc White/Red/Green 10s. 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 Tärnö Lighthouse guide vessels into?+
Tärnö Lighthouse assists vessels approaching 5 nearby ports. The closest is Karlshamn at 5.2 NM to the NW. Other ports served include Elleholm (8.1 NM WNW), KROKAAS (8.1 NM WSW), Ronnebyhamn (11.8 NM ENE), Ronneby (12.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tärnö Lighthouse still active and maintained?+
Yes, Tärnö 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 Tärnö Lighthouse?+
Tärnö 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 Tärnö Lighthouse?+
You can track vessels near Tärnö 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.