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Uki City Lighthouses Lighthouse

Fl Red 8s🇯🇵Uki, JPOperational

Location & Light Range

About Uki City Lighthouses Lighthouse

This lighthouse, built of concrete in 1980, stands 12 meters tall and emits a single red flash every 8 seconds. The structure features a cylindrical red tower with a double gallery, mounted on a concrete pier. An adjacent pier includes steps providing access to the tower. It is situated approximately 800 meters offshore, west of Uki City, at the head of Yatsushiro Bay. The geographic range of its light is 11 nautical miles. While the site is accessible to the public, the tower itself remains closed.

Why it matters: The lighthouse is essential for maritime safety within Yatsushiro Bay, specifically marking the Mifune Se, likely a shoal or submerged hazard, at the bay's head. Its distinct structure also serves as a navigational landmark in the region.

Light & Optic

Characteristic Signature
Fl Red 8s
Flash Type
Flashing
Light Color
Red
Interval
8s
Raw Code
Fl R 8s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1980

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round concrete tower with double gallery mounted on a concrete pier; an adjoining pier has steps for access to the light

Location

City
Uki
Country
🇯🇵Japan
Region
Kumamoto Prefecture
Sea Region
Located about 800 m (1/2 mi) offshore at the head of Yatsushiro Bay west of Uki, a city on the north shore of the bay.
Latitude
32.6185°
Longitude
130.5472°

References & Identifiers

Nearest Port
Misumi, Kumamoto(3.2 km)
Admiralty No.
M5143.2
NGA No.
11564
USCG No.
JCG-6436
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Frequently Asked Questions

How do mariners identify Uki City Lighthouses Lighthouse at night?+
Uki City Lighthouses displays the characteristic Fl Red 8s. 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 Uki City Lighthouses Lighthouse guide vessels into?+
Uki City Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Kagami at 3.9 NM to the ESE. Other ports served include Aizu, Kumamoto (4.2 NM WSW), Akasaki, Kumamoto (4.2 NM WSW), Fukuura, Kumamoto (4.2 NM WSW), Kawachi, Kumamoto (4.2 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uki City Lighthouses Lighthouse still active and maintained?+
Yes, Uki City Lighthouses 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 Uki City Lighthouses Lighthouse?+
Uki City Lighthouses 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 Uki City Lighthouses Lighthouse?+
You can track vessels near Uki City Lighthouses 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.