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Megalonísi Lighthouse

Fl White 15s🇬🇷GROperational

Location & Light Range

About Megalonísi Lighthouse

Also known as: Megalonísi (Sígri, Meganísi)

The Megalonísi Lighthouse, a 15-meter cylindrical concrete tower, was first lit in 1947. It stands 53 meters above sea level, emitting a white flash every 15 seconds. The structure includes a lantern and gallery, connected to a single-story concrete keeper's house. Located 0.8 kilometers from Sigrion, this operational lighthouse guides vessels through the Northern Aegean. Its white concrete construction reflects a post-war approach to maritime safety infrastructure in the region.

Why it matters: Established in 1947, the lighthouse modernized maritime safety for the region's shipping routes. Its light provides reliable navigation through the complex island passages of the Greek archipelago.

Light & Optic

Characteristic Signature
Fl White 15s
Flash Type
Flashing
Light Color
White
Interval
15s
Raw Code
Fl W 15s
Focal Height
53m
Geographic Range
19.1NM

Construction & History

Year Built
1947

References & Identifiers

Nearest Port
Sigrion(0.8 km)
Admiralty No.
N4598
NGA No.
19732
ARLHS No.
GRE-097

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
white concrete
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery, attached to a 1-story concrete keeper's house

Location

Country
🇬🇷Greece
Region
Northern Aegean
Latitude
39.2127°
Longitude
25.8327°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Megalonísi Lighthouse at night?+
Megalonísi displays the characteristic Fl White 15s. 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 Megalonísi Lighthouse guide vessels into?+
Megalonísi Lighthouse assists vessels approaching 5 nearby ports. The closest is Sigri Lesvou at 0.2 NM to the N. Other ports served include Sigrion (0.9 NM E), Molyvos (17.4 NM ENE), Petra (17.8 NM ENE), Baba Point (18.7 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Megalonísi Lighthouse still active and maintained?+
Yes, Megalonísi 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 Megalonísi Lighthouse?+
Megalonísi Lighthouse is located within the Mediterranean East-West corridor — a major trade route spanning the Mediterranean from Gibraltar to the Suez Canal. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Megalonísi Lighthouse?+
You can track vessels near Megalonísi 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.