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Onahama South Breakwater West Head Lighthouse

Fl (2) R 7s🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Onahama South Breakwater West Head Lighthouse

This cylindrical concrete tower, built in 2023, stands 52 meters tall and is painted entirely red. Its focal plane is 19 meters above sea level, emitting a fixed red light. The lighthouse is situated at the western end of Onahama's outer breakwater. Access to this structure is only possible by boat. Its geographic range is limited to 5 nautical miles.

Light & Optic

Characteristic Signature
Fl (2) R 7s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
7s
Raw Code
F.R.
Focal Height
19m
Geographic Range
5NM

Construction & History

Year Built
2023

References & Identifiers

Admiralty No.
M6499.8
NGA No.
4632
ARLHS No.
JPN-1361

Tower & Structure

Tower Height
52m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: Red tower; 52. JAPAN-HONSHU-EAST COAST 53 (1)

Location

City
Northeastern Honshū
Country
🇯🇵JP
Latitude
36.9080°
Longitude
140.8832°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Onahama South Breakwater West Head Lighthouse at night?+
Onahama South Breakwater West Head displays the characteristic Fl (2) R 7s — 2 red flashes every 7 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 South Breakwater West Head Lighthouse guide vessels into?+
Onahama South Breakwater West Head Lighthouse assists vessels approaching 5 nearby ports. The closest is Onahama at 1.4 NM to the N. Other ports served include Ishiwaki (1.7 NM NNE), Nakanosaku (4.5 NM NE), Ena (5.2 NM NE), Hirakata (5.3 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Onahama South Breakwater West Head Lighthouse still active and maintained?+
Yes, Onahama South Breakwater West 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 South Breakwater West Head Lighthouse?+
Onahama South Breakwater West 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 South Breakwater West Head Lighthouse?+
You can track vessels near Onahama South Breakwater West 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.