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Sauragrunnen Lighthouse

Fl (2) White/Red/Green 5s🇳🇴Nesna, NOOperational

Location & Light Range

About Sauragrunnen Lighthouse

This concrete lighthouse, standing 11 meters tall, is situated on a skerry in Lille Jonasfjord, about 2.5 kilometers north of Nesna. It features a square tower painted white with a single black horizontal band, topped by a white lantern with a red roof. The light emits two white, red, or green flashes every 5 seconds, depending on the direction. Access to the site is available by boat, though the tower itself is closed to the public. The geographic range of the light is 9.5 nautical miles.

Why it matters: The lighthouse is important for guiding vessels through the narrow passages of Lille Jonasfjord, helping them avoid the skerry it marks and other submerged hazards.

Light & Optic

Characteristic Signature
Fl (2) White/Red/Green 5s
Flash Type
Flashing
Light Color
White/Red/Green
Flash Count
2 flashes
Interval
5s
Raw Code
Fl(2) WRG 5s
Focal Height
7.5m
Geographic Range
9.5NM

Location

City
Nesna
Country
🇳🇴Norway
Region
Nordland
Sea Region
Lille Jonasfjord, on a skerry about 2.5 km north of Nesna
Latitude
66.2203°
Longitude
13.0151°

References & Identifiers

Nearest Port
Nesna(1.1 km)
Admiralty No.
L2234.4
NGA No.
9748

Tower & Structure

Tower Height
11m
Tower Shape
square
Tower Color
white with one black horizontal band
Material
concrete

Structure: An 11m concrete post with lantern and gallery, painted white with one black horizontal band. The lantern is white with a red roof.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sauragrunnen Lighthouse at night?+
Sauragrunnen displays the characteristic Fl (2) White/Red/Green 5s — 2 white/red/green flashes every 5 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 Sauragrunnen Lighthouse guide vessels into?+
Sauragrunnen Lighthouse assists vessels approaching 5 nearby ports. The closest is Nesna at 1.2 NM to the S. Other ports served include Vikholmen (1.7 NM SW), Austvika (5.7 NM ESE), Stokkvågen (7.2 NM N), Leirfjord (10.3 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sauragrunnen Lighthouse still active and maintained?+
Yes, Sauragrunnen 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.
How can I track vessels near Sauragrunnen Lighthouse?+
You can track vessels near Sauragrunnen 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.