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Igumi Ko Lighthouse

Fl W 5s🇯🇵Honshu-North Coast, JPOperational

Location & Light Range

About Igumi Ko Lighthouse

The Igumi Ko lighthouse features a 46-meter round metal tower, painted white with red bands. A white house is situated at the station. The light emits a white flash every 5 seconds. This structure has a focal height of 66 meters and a geographic range of 5 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
66m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Honshu-North Coast
Country
🇯🇵JP
Latitude
35.6167°
Longitude
134.3853°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
46m
Tower Shape
round
Tower Color
white and red
Material
metal

Structure: White metal tower, red banded, white house; 46

References & Identifiers

Admiralty No.
M7283.8
NGA No.
2328
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Frequently Asked Questions

How far offshore can Igumi Ko Lighthouse be seen?+
With a focal height of 66 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Igumi Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Igumi Ko Lighthouse at night?+
Igumi Ko displays the characteristic Fl W 5s — 1 white flash 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.
Which ports and harbors does Igumi Ko Lighthouse guide vessels into?+
Igumi Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Hamasaka at 3.2 NM to the ENE. Other ports served include Tajiri, Tottori (3.6 NM WSW), Tottori (10.5 NM WSW), Shibayama (13.8 NM E), Yasugi (15.8 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Igumi Ko Lighthouse still active and maintained?+
Yes, Igumi Ko 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 Igumi Ko Lighthouse?+
Igumi Ko Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Igumi Ko Lighthouse?+
You can track vessels near Igumi Ko 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.