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Onahama West Breakwater South Head Lighthouse

Fl R 5s🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Onahama West Breakwater South Head Lighthouse

This red, square concrete tower reaches a height of 18 meters. The structure comprises a metal framework atop a concrete base. It exhibits a red light. The lighthouse has a geographic range of 10 nautical miles. It is operational.

Light & Optic

Characteristic Signature
Fl R 5s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
5s
Raw Code
Fl
Focal Height
18m
Geographic Range
10NM

Location

City
Northeastern Honshū
Country
🇯🇵JP
Latitude
36.9151°
Longitude
140.8881°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
square
Tower Color
red
Material
concrete

Structure: Metal framework tower, square concrete base; 39

References & Identifiers

Admiralty No.
M6500
NGA No.
4636
OpenStreetMap
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Frequently Asked Questions

How do mariners identify Onahama West Breakwater South Head Lighthouse at night?+
Onahama West Breakwater South Head displays the characteristic Fl R 5s — 1 red flash every 5 seconds. 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 Onahama West Breakwater South Head Lighthouse guide vessels into?+
Onahama West Breakwater South Head Lighthouse assists vessels approaching 5 nearby ports. The closest is Onahama at 0.9 NM to the N. Other ports served include Ishiwaki (1.2 NM NNE), Nakanosaku (4 NM NE), Ena (4.7 NM NE), Hirakata (5.8 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Onahama West Breakwater South Head Lighthouse still active and maintained?+
Yes, Onahama West Breakwater South Head 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 Onahama West Breakwater South Head Lighthouse?+
Onahama West Breakwater South Head 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 Onahama West Breakwater South Head Lighthouse?+
You can track vessels near Onahama West Breakwater South Head 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.