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Suomenlinna Lighthouse

Fl White 15s🇫🇮Helsinki, FIOperational

Location & Light Range

About Suomenlinna Lighthouse

Also known as: Suomenlinna (Sveaborg) (Harmaja Range Rear)

The Suomenlinna lighthouse is a stone cylindrical tower built in 1929, standing 27 meters tall. The light is mounted atop the dome of a square stone church, which is centered on a square stone church. This structure guides vessels in the Gulf of Finland toward Helsinki harbor. Its geographic range is 19.3 nautical miles, emitting a white light with one flash every 15 seconds. The lighthouse is situated 1.7 kilometers from Helsinki, the nearest port.

Why it matters: This lighthouse is important for navigating the shipping lanes to and from Helsinki's harbor, especially around the Suomenlinna fortress archipelago. Its unique design atop a church dome makes it an architectural feature of the World Heritage site.

Light & Optic

Characteristic Signature
Fl White 15s
Flash Type
Flashing
Light Color
White
Interval
15s
Raw Code
Fl W 15s
Focal Height
54m
Geographic Range
19.3NM

Construction & History

Year Built
1929

References & Identifiers

Nearest Port
Helsinki(1.7 km)
ARLHS No.
FIN-063

Tower & Structure

Tower Height
27m
Tower Shape
cylindrical
Material
stone

Structure: light mounted atop the dome of a square cylindrical stone tower, centered on a square stone church

Location

City
Helsinki
Country
🇫🇮Finland
Region
Uusimaa
Sea Region
Suomenlinna, Finland, guiding vessels in the Gulf of Finland towards Helsinki harbor.
Latitude
60.1471°
Longitude
24.9863°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Suomenlinna Lighthouse at night?+
Suomenlinna displays the characteristic Fl White 15s. 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 Suomenlinna Lighthouse guide vessels into?+
Suomenlinna Lighthouse assists vessels approaching 5 nearby ports. The closest is Sveaborg (Suomenlinna) at 0.8 NM to the S. Other ports served include Helsinki (1.8 NM NW), LAAJASALO (1.9 NM NNE), Salo (3.2 NM NE), Vuosaari (Nordsjö) (7.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Suomenlinna Lighthouse still active and maintained?+
Yes, Suomenlinna 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 Suomenlinna Lighthouse?+
Suomenlinna 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 Suomenlinna Lighthouse?+
You can track vessels near Suomenlinna 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.