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Ube Kō West Breakwater Lighthouse

Oc Green 6s🇯🇵Ube, JPOperational

Location & Light Range

About Ube Kō West Breakwater Lighthouse

This 9-meter square concrete post, painted white, stands on a short breakwater on the western side of Ube harbor. It is attached to a 1-story concrete equipment room. The light emits a green occulting signal with a 6-second cycle, visible for 11 nautical miles. The structure is located approximately 1.1 km from the nearest port in Ube city, Yamaguchi Prefecture. Its focal height reaches 12 meters above sea level.

Why it matters: This light is essential for maritime traffic navigating the busy Ube harbor, specifically marking the western edge of the main shipping channel. Its green occulting signal helps vessels safely enter and depart the industrial port.

Light & Optic

Characteristic Signature
Oc Green 6s
Flash Type
Occulting
Light Color
Green
Interval
6s
Raw Code
Oc G 6s
Focal Height
12m
Geographic Range
11NM

Location

City
Ube
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
Ube harbor, Japan, on a short breakwater on the west side.
Latitude
33.9377°
Longitude
131.2314°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: A 9m square concrete post, painted white, is attached to a square 1-story concrete equipment room.

References & Identifiers

Nearest Port
Ube(1.1 km)
ARLHS No.
JPN-1671
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Frequently Asked Questions

How do mariners identify Ube Kō West Breakwater Lighthouse at night?+
Ube Kō West Breakwater displays the characteristic Oc Green 6s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Ube Kō West Breakwater Lighthouse guide vessels into?+
Ube Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ube at 0.7 NM to the E. Other ports served include Onoda (3.8 NM WNW), Asa (5.9 NM NW), Maruo (6.3 NM ENE), Sanyo Onoda Yamaguchi (9.1 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ube Kō West Breakwater Lighthouse still active and maintained?+
Yes, Ube 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 Ube Kō West Breakwater Lighthouse?+
Ube 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 Ube Kō West Breakwater Lighthouse?+
You can track vessels near Ube 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.