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Aurgrund Lighthouse

Fl White/Red/Green 9s🇸🇪Gotland Municipality, SEOperational

Location & Light Range

About Aurgrund Lighthouse

A 10-meter-high cylindrical concrete tower built in 1935, Aurgrund lighthouse is located on a small island at the eastern side of the northern Fårösund entrance. Its lantern and gallery are black, contrasting with the white tower. The focal height reaches 12.5 meters, providing a geographic range of 11.2 nautical miles. It emits a 9-second cycle light with white, red, and green flashes. The nearest port is Farosund, 3.7 kilometers away.

Why it matters: Aurgrund lighthouse is critical for guiding ships through the northern entrance of the Fårösund, a busy channel in the Swedish archipelago. Its sector light, displaying white, red, or green flashes, precisely delineates safe passages and warns of navigational dangers.

Light & Optic

Characteristic Signature
Fl White/Red/Green 9s
Flash Type
Flashing
Light Color
White/Red/Green
Interval
9s
Raw Code
Fl WRG 9s
Focal Height
12.5m
Light Range
11NM (20.4 km)
Geographic Range
11.2NM

Construction & History

Year Built
1935

References & Identifiers

Nearest Port
Farosund(3.7 km)
Admiralty No.
C7170
NGA No.
9868
ARLHS No.
SWE-429
Wikidata
Q31893270 →

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white with black lantern and gallery
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

Location

City
Gotland Municipality
Country
🇸🇪Sweden
Region
Gotland County
Sea Region
A small island on the east side of the northern entrance to the Fårösund.
Latitude
57.9223°
Longitude
19.0394°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Aurgrund Lighthouse be seen?+
With a focal height of 12.5 meters and a nominal range of 11 nautical miles (approximately 20.4 km), Aurgrund 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 Aurgrund Lighthouse at night?+
Aurgrund displays the characteristic Fl White/Red/Green 9s. 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 Aurgrund Lighthouse guide vessels into?+
Aurgrund Lighthouse assists vessels approaching 5 nearby ports. The closest is Fårösund at 0.5 NM to the SE. Other ports served include Sund (0.5 NM SE), Strå (2.4 NM SSW), Kappelshamn (9.3 NM WSW), Storugns (12.6 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Aurgrund Lighthouse still active and maintained?+
Yes, Aurgrund 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 Aurgrund Lighthouse?+
Aurgrund 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 Aurgrund Lighthouse?+
You can track vessels near Aurgrund 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.