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Länsi Mustasaari (Västra Svartö) Lighthouse

Oc White/Red/Green 2s🇫🇮Helsinki, FIOperational

Location & Light Range

About Länsi Mustasaari (Västra Svartö) Lighthouse

This 4-meter octagonal lantern structure, first lit in 1891, stands on the southwest side of Länsi Musta island, approaching Helsinki harbor. Painted white with a single red horizontal band, its focal height is 6 meters. The light emits an occulting signal, changing between white, red, and green every 2 seconds, providing directional guidance. The lighthouse is located 1.5 kilometers from the nearest port, Helsinki. While the site is open to the public, the tower itself is closed.

Why it matters: This lighthouse is essential for vessels navigating the busy shipping lanes into Helsinki harbor, offering critical directional guidance with its multi-colored occulting light.

Light & Optic

Characteristic Signature
Oc White/Red/Green 2s
Flash Type
Occulting
Light Color
White/Red/Green
Interval
2s
Raw Code
Oc WRG 2s
Focal Height
6m
Geographic Range
8.9NM

Construction & History

First Lit
1891

Significant events: station established 1891

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
4m
Tower Shape
octagonal
Tower Color
white with one red horizontal band

Structure: A 4m octagonal lantern with lantern and gallery, painted white with one red horizontal band.

Location

City
Helsinki
Country
🇫🇮Finland
Region
Uusimaa
Sea Region
southwest side of Länsi Musta, an island on the southeast side of Helsinki harbor
Latitude
60.1463°
Longitude
24.9738°

References & Identifiers

Nearest Port
Helsinki(1.5 km)
Admiralty No.
C5166
NGA No.
14472
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Frequently Asked Questions

How do mariners identify Länsi Mustasaari (Västra Svartö) Lighthouse at night?+
Länsi Mustasaari (Västra Svartö) displays the characteristic Oc 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 Länsi Mustasaari (Västra Svartö) Lighthouse guide vessels into?+
Länsi Mustasaari (Västra Svartö) Lighthouse assists vessels approaching 5 nearby ports. The closest is Sveaborg (Suomenlinna) at 0.8 NM to the SSE. Other ports served include Helsinki (1.6 NM NNW), LAAJASALO (2.2 NM NE), Salo (3.5 NM NE), Vuosaari (Nordsjö) (7.6 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Länsi Mustasaari (Västra Svartö) Lighthouse still active and maintained?+
Yes, Länsi Mustasaari (Västra Svartö) 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 Länsi Mustasaari (Västra Svartö) Lighthouse?+
Länsi Mustasaari (Västra Svartö) 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 Länsi Mustasaari (Västra Svartö) Lighthouse?+
You can track vessels near Länsi Mustasaari (Västra Svartö) 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.