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Rannö Lighthouse

Fl (2) White 5s🇫🇮Saltvik, FIOperational

Location & Light Range

About Rannö Lighthouse

A square pyramidal skeletal tower, stained red-brown, was built and first lit in 1962 on a small island north of the Åland Islands. This 6-meter-tall structure supports a light with a focal height of 20 meters, emitting a white flash every 5 seconds. It has a geographic range of 13.2 nautical miles. The tower features slatted daymarks on two sides. The site is open to the public, but the tower itself is closed.

Why it matters: Rannö lighthouse appears on a postage stamp, indicating its cultural recognition in the region. It aids navigation through the complex waterways of the northern Åland archipelago.

Light & Optic

Characteristic Signature
Fl (2) White 5s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
5s
Raw Code
Fl W 5s
Focal Height
20m
Geographic Range
13.2NM

Construction & History

Year Built
1962

Significant events: Appears on a postage stamp

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Shape
square
Tower Color
red-brown stain, described as red

Structure: square pyramidal skeletal tower with slatted daymarks on two sides

Location

City
Saltvik
Country
🇫🇮Finland
Region
Åland Islands
Sea Region
A small island on the north side of the Åland archipelago.
Latitude
60.5288°
Longitude
20.1988°

References & Identifiers

Nearest Port
Godby(18.2 km)
ARLHS No.
ALA-015
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Frequently Asked Questions

How do mariners identify Rannö Lighthouse at night?+
Rannö displays the characteristic Fl (2) White 5s — 2 white 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 color may indicate a specific sector or warning zone.
Which ports and harbors does Rannö Lighthouse guide vessels into?+
Rannö Lighthouse assists vessels approaching 5 nearby ports. The closest is Harvaluoto at 12.6 NM to the SE. Other ports served include Färjsundet (18.9 NM SSW), Kumlinge (21.1 NM SE), Marsund (24.7 NM SW), Långnäs (25 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Rannö Lighthouse still active and maintained?+
Yes, Rannö 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 Rannö Lighthouse?+
Rannö 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 Rannö Lighthouse?+
You can track vessels near Rannö 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.