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Katsumoto Kō West Breakwater Lighthouse

Fl Red 3s🇯🇵Iki, JPOperational

Location & Light Range

About Katsumoto Kō West Breakwater Lighthouse

This concrete post, measuring 8.5 meters in height, stands on the western arm of Katsumoto's breakwater. Painted entirely red, it supports an equipment shelter and emits a red flash every 3 seconds. The light has a geographic range of 11 nautical miles. Its post structure is attached to a square equipment shelter, also painted red. Visitors can access the site, but the tower itself is closed to the public.

Why it matters: This light is essential for local fishing vessels and small craft, clearly marking the west breakwater and the safe channel into Katsumoto harbor, particularly during periods of low visibility or nighttime navigation.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
12m
Geographic Range
11NM

Location

City
Iki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
west breakwater of Katsumoto harbor
Latitude
33.8574°
Longitude
129.6920°

References & Identifiers

Nearest Port
Yobuko(21.3 km)
Admiralty No.
M5259.4
NGA No.
12660
ARLHS No.
JPN-2201

Tower & Structure

Tower Height
8.5m
Tower Shape
square
Tower Color
red
Material
concrete

Structure: A 8.5m concrete post attached to a square equipment shelter, painted entirely red.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Katsumoto Kō West Breakwater Lighthouse at night?+
Katsumoto Kō West Breakwater displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Katsumoto Kō West Breakwater Lighthouse guide vessels into?+
Katsumoto Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Katsumoto at 0 NM to the N. Other ports served include Ashibe (4.4 NM SE), Yobuko (21.4 NM SSE), Tobo (25.5 NM SSE), Karatsu (26.3 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Katsumoto Kō West Breakwater Lighthouse still active and maintained?+
Yes, Katsumoto Kō West Breakwater 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 Katsumoto Kō West Breakwater Lighthouse?+
Katsumoto Kō West Breakwater 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 Katsumoto Kō West Breakwater Lighthouse?+
You can track vessels near Katsumoto Kō West Breakwater 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.