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Kölhällen Lighthouse

Fl (3) 10s🇫🇮Porvoo, FIOperational

Location & Light Range

About Kölhällen Lighthouse

Kölhällen lighthouse is a square, concrete tower standing 10 meters tall, painted black with a white horizontal band. It is situated on an isolated skerry about 12.6 kilometers from the nearest port of Porvoo. The light's focal height is 10.5 meters, and it emits three white flashes every 10 seconds, visible for 10.5 nautical miles. The tower's construction material is concrete. The site is open to the public, but the tower itself remains closed.

Why it matters: This lighthouse warns vessels about an isolated skerry located northeast of the Porvoo light, helping to prevent groundings along this section of the Finnish coast.

Light & Optic

Characteristic Signature
Fl (3) 10s
Flash Type
Flashing
Flash Count
3 flashes
Interval
10s
Raw Code
Fl(3) W 10s
Focal Height
10.5m
Light Range
3NM (5.6 km)
Geographic Range
10.5NM

Construction & History

Significant events: light obscured by scaffolding

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
square
Tower Color
black with a white horizontal band
Material
concrete

Structure: concrete tower, painted black with a white horizontal band

Location

City
Porvoo
Country
🇫🇮Finland
Region
Uusimaa
Sea Region
an isolated skerry about 2.5 km northeast of the Porvoo light
Latitude
60.1045°
Longitude
25.6405°

References & Identifiers

Nearest Port
Porvoo(12.6 km)
Admiralty No.
C5240.4
NGA No.
14096
Wikidata
Q24340470 →
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Frequently Asked Questions

How far offshore can Kölhällen Lighthouse be seen?+
With a focal height of 10.5 meters and a nominal range of 3 nautical miles (approximately 5.6 km), Kölhällen 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 Kölhällen Lighthouse at night?+
Kölhällen displays the characteristic Fl (3) 10s — 3 flashes every 10 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.
Which ports and harbors does Kölhällen Lighthouse guide vessels into?+
Kölhällen Lighthouse assists vessels approaching 5 nearby ports. The closest is KALKKIRANTA at 11.7 NM to the NW. Other ports served include Sköldvik (Kilpilahti) (12 NM NNW), Porvoo (Borgå) (12.7 NM NNW), Tolkkinen (Tolkis) (13.3 NM N), Vuosaari (Nordsjö) (15 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kölhällen Lighthouse still active and maintained?+
Yes, Kölhällen 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 Kölhällen Lighthouse?+
Kölhällen 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 Kölhällen Lighthouse?+
You can track vessels near Kölhällen 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.