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Rataskär Övrefyr Lighthouse

Fl green 4s🇸🇪Robertsfors kommun, SEOperational

Location & Light Range

About Rataskär Övrefyr Lighthouse

Also known as: Rataskär Övrefyr (Rataskärs Båk)

Rataskär Övrefyr is an octagonal wooden tower built in 1828, standing 18 meters tall. It features a pyramidal wood roof and a distinctive red and white checkerboard pattern on one side. Originally a simple beacon, it later served as an active light. The tower's focal height is 9 meters, and it has a geographic range of 10 nautical miles. Today, its illuminating function is inactive, but the structure is maintained. The site is open to the public, though the tower itself is closed.

Why it matters: The tower serves as the rear marker for a day range, providing essential visual guidance for vessels approaching Ratan harbor. Its unique checkerboard pattern aids in precise navigation.

Light & Optic

Characteristic Signature
Fl green 4s
Flash Type
Flashing
Light Color
green
Interval
4s
Raw Code
Fl.G
Focal Height
9m
Geographic Range
10NM

Construction & History

Year Built
1828

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
octagonal
Tower Color
in a red and white checkerboard pattern
Material
wood

Structure: octagonal wood tower with a pyramidal wood roof

Location

City
Robertsfors kommun
Country
🇸🇪Sweden
Region
Västerbotten County
Sea Region
Ratan harbor, sheltered by the island of Rataskär
Latitude
63.9925°
Longitude
20.8961°

References & Identifiers

Nearest Port
Sikea(9.5 km)
Admiralty No.
C5852
NGA No.
11304
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Frequently Asked Questions

How do mariners identify Rataskär Övrefyr Lighthouse at night?+
Rataskär Övrefyr displays the characteristic Fl green 4s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Rataskär Övrefyr Lighthouse guide vessels into?+
Rataskär Övrefyr Lighthouse assists vessels approaching 5 nearby ports. The closest is BYVIKEN at 11.4 NM to the S. Other ports served include Böda (15.4 NM NNE), Umeå (19.6 NM WSW), Holmsund (23 NM SW), Obbola (23 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Rataskär Övrefyr Lighthouse still active and maintained?+
Yes, Rataskär Övrefyr 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 Rataskär Övrefyr Lighthouse?+
Rataskär Övrefyr 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 Rataskär Övrefyr Lighthouse?+
You can track vessels near Rataskär Övrefyr 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.