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Ōhira Se Lighthouse

Oc White 6s🇯🇵Abu, JPOperational

Location & Light Range

About Ōhira Se Lighthouse

Ōhira Se Lighthouse, built in 1976, stands as a 13-meter white concrete post atop a 1-story equipment room. This lighthouse is situated on a high promontory about 8 kilometers northwest of Abu, within Yamaguchi Prefecture. Its light, visible for nearly 29 nautical miles, emits an occulting white signal with a 6-second cycle. The site is open to the public, though the tower itself is closed. Access to the lighthouse involves navigating a service road through a natural landscape.

Why it matters: The lighthouse provides an important navigational aid for vessels operating in the coastal waters northwest of Abu, guiding them from its elevated position.

Light & Optic

Characteristic Signature
Oc White 6s
Flash Type
Occulting
Light Color
White
Interval
6s
Raw Code
Oc W 6s
Focal Height
140m
Geographic Range
28.8NM

Construction & History

Year Built
1976

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: A 13m white concrete post attached to a 1-story concrete equipment room.

Location

City
Abu
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
high promontory in a wild area about 8 km northwest of Abu
Latitude
34.5248°
Longitude
131.4569°

References & Identifiers

Nearest Port
Nago(1.7 km)
Admiralty No.
M7360.6
NGA No.
1736
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Frequently Asked Questions

How do mariners identify Ōhira Se Lighthouse at night?+
Ōhira Se displays the characteristic Oc White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Ōhira Se Lighthouse guide vessels into?+
Ōhira Se Lighthouse assists vessels approaching 5 nearby ports. The closest is Hagi at 5.8 NM to the SSW. Other ports served include Susa (9 NM NE), Esaki (11.7 NM NE), Senzaki (14.8 NM SW), Fukawa (16 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ōhira Se Lighthouse still active and maintained?+
Yes, Ōhira Se 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 Ōhira Se Lighthouse?+
Ōhira Se 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 Ōhira Se Lighthouse?+
You can track vessels near Ōhira Se 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.