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Kourumeshima Lighthouse

Occ W 4s🇯🇵Seto Naikai Western, JPOperational

Location & Light Range

About Kourumeshima Lighthouse

This lighthouse features a white, lantern-shaped tower that reaches a height of 36 meters. Its light emits an occulting white signal, repeating a 4-second cycle. The focal plane of the light is situated 22 meters above sea level. This structure provides a geographic range of 8 nautical miles.

Light & Optic

Characteristic Signature
Occ W 4s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Oc.W. period 4s
Focal Height
22m
Light Range
8NM (14.8 km)
Geographic Range
8NM

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
34.2402°
Longitude
132.5191°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
36m
Tower Shape
lantern
Tower Color
white

Structure: White tower; 36

References & Identifiers

Admiralty No.
M5692
NGA No.
9052
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Frequently Asked Questions

How far offshore can Kourumeshima Lighthouse be seen?+
With a focal height of 22 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Kourumeshima is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Kourumeshima Lighthouse at night?+
Kourumeshima displays the characteristic Occ W 4s — 1 white flash every 4 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 Kourumeshima Lighthouse guide vessels into?+
Kourumeshima Lighthouse assists vessels approaching 5 nearby ports. The closest is Etajima at 1.3 NM to the WNW. Other ports served include Kure, Kochi (1.6 NM ESE), Kure, Hiroshima (2.3 NM ESE), Hatami (3.4 NM SSE), Mitsukoshima (3.4 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kourumeshima Lighthouse still active and maintained?+
Yes, Kourumeshima 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 Kourumeshima Lighthouse?+
Kourumeshima 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 Kourumeshima Lighthouse?+
You can track vessels near Kourumeshima 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.