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Grauten Lighthouse

Fl (2) White/Red/Green 6s🇸🇪Gotland Municipality, SEOperational

Location & Light Range

About Grauten Lighthouse

Built in 1911, the Grauten lighthouse is a 11-meter-tall cylindrical concrete tower located on a small island northeast of Gotland. Its lantern room and gallery sit atop the bright orange structure. The light emits two white, red, or green flashes every six seconds, providing directional guidance. This light's color changes based on the observer's bearing. In 2008, a proposal to decommission the light was made but not enacted, allowing it to continue its operation. The island hosting the lighthouse is privately owned and not accessible to the public.

Why it matters: The lighthouse's directional light is significant for mariners navigating the waters near Valleviken and along the northeast coast of Gotland, aiding in hazard avoidance and maintaining correct bearings.

Light & Optic

Characteristic Signature
Fl (2) White/Red/Green 6s
Flash Type
Flashing
Light Color
White/Red/Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl(2) WRG 6s
Focal Height
12m
Light Range
7NM (13.0 km)
Geographic Range
11NM

Construction & History

Year Built
1911

Significant events: In 2008 the Sjöfartsverket proposed to eliminate the light, but this has not occurred.

References & Identifiers

Nearest Port
Slite(6.9 km)
Admiralty No.
C7178
NGA No.
116-9888
ARLHS No.
SWE-155
Wikidata
Q40345070 →

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
bright orange
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

Location

City
Gotland Municipality
Country
🇸🇪Sweden
Region
Gotland County
Sea Region
small island off the northeast coast of Gotland, about 7 km (4.5 mi) southeast of Valleviken
Latitude
57.7273°
Longitude
19.0261°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Grauten Lighthouse be seen?+
With a focal height of 12 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Grauten 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 Grauten Lighthouse at night?+
Grauten displays the characteristic Fl (2) White/Red/Green 6s — 2 white/red/green flashes every 6 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. The white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Grauten Lighthouse guide vessels into?+
Grauten Lighthouse assists vessels approaching 5 nearby ports. The closest is Storugns at 6.8 NM to the WNW. Other ports served include Slite (7.3 NM W), Strå (9.4 NM N), Kappelshamn (10.7 NM NW), Fårösund (11.4 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Grauten Lighthouse still active and maintained?+
Yes, Grauten 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 Grauten Lighthouse?+
Grauten 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 Grauten Lighthouse?+
You can track vessels near Grauten 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.