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Île de Sein Lighthouse

🇫🇷Quimper, FROperational

Location & Light Range

About Île de Sein Lighthouse

Constructed in 1952, this active lighthouse stands on the island of Île de Sein, off the coast of Brittany, France. The structure is a cylindrical, reinforced concrete tower that rises 51 meters, with the light positioned at 49 meters above sea level. It features a lantern and gallery at its summit. The tower emerges from the center of a two-story keeper's house built of stone. Visitors can access the lighthouse, which offers a geographic range of 18.5 nautical miles. The nearest port is Audierne, located 13.2 kilometers away.

Why it matters: Its strategic placement on Île de Sein is important for guiding maritime traffic through the complex waters off the French coast. As an accessible, active lighthouse, it also draws visitors, offering a tangible link to the daily realities of coastal navigation.

Light & Optic

Focal Height
49m
Geographic Range
18.5NM

Construction & History

Year Built
1952

Visiting

Open to public
Yes

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
51m
Tower Shape
cylindrical
Material
stone, concrete

Structure: round reinforced concrete tower with lantern and gallery, rising from the center of a 2-story stone keeper's house

Location

City
Quimper
Country
🇫🇷France
Region
Brittany
Sea Region
The island of Île de Sein, off the coast of France
Latitude
48.0435°
Longitude
-4.8669°

References & Identifiers

Nearest Port
Audierne(13.2 km)
ARLHS No.
FRA-066
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Frequently Asked Questions

Which ports and harbors does Île de Sein Lighthouse guide vessels into?+
Île de Sein Lighthouse assists vessels approaching 5 nearby ports. The closest is Île-de-Sein at 0.9 NM to the SE. Other ports served include SEIN (0.9 NM SE), Plogoff (8.1 NM E), Audierne (13.3 NM E), Plozévet (17.8 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Île de Sein Lighthouse still active and maintained?+
Yes, Île de Sein 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 Île de Sein Lighthouse?+
Île de Sein Lighthouse is located within the English Channel / North Sea corridor — one of the world's busiest maritime corridors connecting the Atlantic to Northern European ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Île de Sein Lighthouse?+
You can track vessels near Île de Sein 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.