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Komesaki Lighthouse

Iso W 6s🇯🇵Seto Naikai Eastern, JPOperational

Location & Light Range

About Komesaki Lighthouse

Komesaki Lighthouse is a white, round concrete tower that stands 33 meters tall. The light emits an isophase white signal, repeating on a 6-second cycle. Its focal plane is positioned 25 meters above sea level. This structure was built to aid navigation in the Seto Naikai Eastern region.

Why it matters: This lighthouse provides a geographic range of 8 nautical miles.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Iso.W. period 6s
Focal Height
25m
Light Range
8NM (14.8 km)
Geographic Range
8NM

Location

City
Seto Naikai Eastern
Country
🇯🇵JP
Latitude
34.5767°
Longitude
134.0470°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
33m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 33

References & Identifiers

Admiralty No.
M5748.6
NGA No.
8040
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Frequently Asked Questions

How far offshore can Komesaki Lighthouse be seen?+
With a focal height of 25 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Komesaki 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 Komesaki Lighthouse at night?+
Komesaki displays the characteristic Iso W 6s — 1 white flash every 6 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 Komesaki Lighthouse guide vessels into?+
Komesaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Yamada at 2.4 NM to the SW. Other ports served include Okayama (4.9 NM WNW), Ieura (5.1 NM S), Ushimado (5.8 NM ENE), Uno (6.9 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Komesaki Lighthouse still active and maintained?+
Yes, Komesaki 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 Komesaki Lighthouse?+
Komesaki 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 Komesaki Lighthouse?+
You can track vessels near Komesaki 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.