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Västerkobb Lighthouse

Iso White/Red/Green 4s🇸🇪Norrtälje kommun, SEOperational

Location & Light Range

About Västerkobb Lighthouse

The Västerkobb lighthouse is a round, cylindrical concrete tower constructed in 1939. Reaching a height of 7.5 meters, its lantern is situated at a focal elevation of 9 meters. The structure is painted white, distinguished by a green horizontal band around the lantern. It emits an isophase white, red, and green light every 4 seconds, offering a geographic range of 10 nautical miles. Located on the west side of Vidinge island, within the municipality of Norrtälje kommun, this lighthouse aids navigation.

Why it matters: This lighthouse serves as a navigation aid for vessels approaching Vidinge island. Its sector light, with distinct white, red, and green beams, marks safe passages and alerts ships to hazards. Positioned on the island's western edge, it helps mariners navigate the complex waters near Kapellskar.

Light & Optic

Characteristic Signature
Iso White/Red/Green 4s
Flash Type
Isophase
Light Color
White/Red/Green
Interval
4s
Raw Code
Iso WRG 4s
Focal Height
9m
Light Range
8NM (14.8 km)
Geographic Range
10NM

Construction & History

Year Built
1939

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7.5m
Tower Shape
cylindrical
Tower Color
white with a green horizontal band around the lantern
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery, painted white with a green horizontal band around the lantern

Location

City
Norrtälje kommun
Country
🇸🇪Sweden
Region
Stockholm County
Sea Region
west side of the island of Vidinge
Latitude
59.6616°
Longitude
19.1717°

References & Identifiers

Nearest Port
Kapellskar(4.7 km)
Admiralty No.
C6396
NGA No.
9360
Wikidata
Q33201371 →
OpenStreetMap
View on OSM →
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Frequently Asked Questions

How far offshore can Västerkobb Lighthouse be seen?+
With a focal height of 9 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Västerkobb is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Västerkobb Lighthouse at night?+
Västerkobb displays the characteristic Iso White/Red/Green 4s. 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 Västerkobb Lighthouse guide vessels into?+
Västerkobb Lighthouse assists vessels approaching 5 nearby ports. The closest is Kapellskär at 4.6 NM to the NW. Other ports served include Linanäs (6.4 NM N), Norrtälje (14.8 NM WNW), Sandhamn (23.7 NM SSW), Stavsnas (26.6 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Västerkobb Lighthouse still active and maintained?+
Yes, Västerkobb 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 Västerkobb Lighthouse?+
Västerkobb 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 Västerkobb Lighthouse?+
You can track vessels near Västerkobb 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.