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Tjørnøyna Lighthouse

Oc (3) White/Red/Green 12s🇳🇴Øygarden, NOOperational

Location & Light Range

About Tjørnøyna Lighthouse

Also known as: Tjørnøyna (Tjørnøy)

This concrete lighthouse stands 12 meters tall on a skerry off the west coast of Sotra, Norway. The cylindrical tower is painted white, and features a lantern with a red roof. Its focal height reaches 19 meters above sea level. The light emits three flashes, alternating between white, red, and green, over a 12-second cycle. It is situated approximately 4.4 kilometers from the nearest port of Agotnes.

Why it matters: The lighthouse's directional light is critical for vessels navigating the complex inshore waters off Sotra, marking the skerry it occupies and guiding mariners away from submerged hazards.

Light & Optic

Characteristic Signature
Oc (3) White/Red/Green 12s
Flash Type
Occulting
Light Color
White/Red/Green
Flash Count
3 flashes
Interval
12s
Raw Code
Oc(3) WRG 12s
Focal Height
19m
Geographic Range
12.9NM

Location

City
Øygarden
Country
🇳🇴Norway
Region
Vestland
Sea Region
A skerry off the west coast of Sotra, Norway
Latitude
60.3594°
Longitude
4.9218°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: A 12m concrete post with lantern and gallery, painted white with a red lantern roof.

References & Identifiers

Nearest Port
Agotnes(4.4 km)
Admiralty No.
B4086
NGA No.
4000
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Frequently Asked Questions

How do mariners identify Tjørnøyna Lighthouse at night?+
Tjørnøyna displays the characteristic Oc (3) White/Red/Green 12s — 3 white/red/green flashes every 12 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 Tjørnøyna Lighthouse guide vessels into?+
Tjørnøyna Lighthouse assists vessels approaching 5 nearby ports. The closest is Ågotnes at 4.3 NM to the NE. Other ports served include Tælavåg (6.8 NM SSE), Knarrevik (7 NM E), Brattholmen (7.2 NM E), Hanøytangen (7.4 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tjørnøyna Lighthouse still active and maintained?+
Yes, Tjørnøyna 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 Tjørnøyna Lighthouse?+
You can track vessels near Tjørnøyna 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.