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Kudamatsu City Lighthouse Lighthouse

Fl White 4s🇯🇵Kudamatsu, JPOperational

Location & Light Range

About Kudamatsu City Lighthouse Lighthouse

A cylindrical concrete tower, painted white, stands 7.5 meters tall on a rocky islet south of Kasado Shima. Its focal plane reaches 37 meters above sea level. The lighthouse emits a single white flash every 4 seconds, visible for 16.6 nautical miles. It is situated approximately 10 kilometers south of Kudamatsu, Japan, marking the southern tip of the island. The structure is a round concrete tower, and the site and tower are not open to the public.

Why it matters: This lighthouse marks the southern end of Kasado Shima, offering a key navigational reference for ships in the waters south of Kudamatsu. Its light aids mariners in avoiding the rocky shoreline and navigating safely near the approach to local shipping lanes.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
37m
Geographic Range
16.6NM

Location

City
Kudamatsu
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
A rocky islet just off the southern tip of Kasado Shima, approximately 10 km south of Kudamatsu, Japan.
Latitude
33.9295°
Longitude
131.8185°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7.5m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower

References & Identifiers

Nearest Port
Kudamatsu(4.5 km)
Admiralty No.
M5404.4
ARLHS No.
JPN-109
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Frequently Asked Questions

How do mariners identify Kudamatsu City Lighthouse Lighthouse at night?+
Kudamatsu City Lighthouse displays the characteristic Fl White 4s. 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 Kudamatsu City Lighthouse Lighthouse guide vessels into?+
Kudamatsu City Lighthouse Lighthouse assists vessels approaching 5 nearby ports. The closest is Kudamatsu at 4.6 NM to the NNE. Other ports served include Hikari (5.9 NM ENE), Tokuyama (6.2 NM N), Tonda (7.1 NM NNW), Tokuyamakudamatsu (7.5 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kudamatsu City Lighthouse Lighthouse still active and maintained?+
Yes, Kudamatsu City Lighthouse 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 Kudamatsu City Lighthouse Lighthouse?+
Kudamatsu City Lighthouse 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 Kudamatsu City Lighthouse Lighthouse?+
You can track vessels near Kudamatsu City Lighthouse 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.