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Slantreskjæret Lighthouse

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

Location & Light Range

About Slantreskjæret Lighthouse

Also known as: Slantreskjæret (Sandøy)

This metal square tower stands 6.5 meters high, with its lantern and gallery reaching a focal height of 8.5 meters. It is located on a skerry at the entrance to Sandøy harbor, near Ålesund. The lighthouse emits three white, red, or green flashes every 12 seconds, visible for 9.9 nautical miles. This operational structure, painted white, features a square tower with a lantern and gallery. The site is open to visitors, though the tower itself is closed to the public. Its nearest port is Steinshamn, 3.4 kilometers away.

Why it matters: Slantreskjæret Lighthouse is essential for the safe navigation of vessels entering and exiting Sandøy harbor. Its position on a skerry at the harbor mouth warns mariners of submerged hazards, aiding complex maneuvers.

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
8.5m
Geographic Range
9.9NM

Location

City
Ålesund
Country
🇳🇴Norway
Region
Møre og Romsdal
Sea Region
skerry in the entrance to the harbor of Sandøy
Latitude
62.8204°
Longitude
6.5751°

References & Identifiers

Nearest Port
Steinshamn(3.4 km)
Admiralty No.
L0898
NGA No.
6316

Tower & Structure

Tower Height
6.5m
Tower Shape
square
Tower Color
white
Material
metal

Structure: square tower with lantern and gallery

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 Slantreskjæret Lighthouse at night?+
Slantreskjæret 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 Slantreskjæret Lighthouse guide vessels into?+
Slantreskjæret Lighthouse assists vessels approaching 5 nearby ports. The closest is Finnøy at 2.1 NM to the WSW. Other ports served include Steinshamn (3.5 NM SW), Midsund (9.1 NM SSE), Aukra (9.6 NM ESE), Nyhamna (10.4 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Slantreskjæret Lighthouse still active and maintained?+
Yes, Slantreskjæret 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 Slantreskjæret Lighthouse?+
You can track vessels near Slantreskjæret 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.