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Ohiru Shima Lighthouse

Fl W 5s🇯🇵Okayama and Hiroshima, JPOperational

Location & Light Range

About Ohiru Shima Lighthouse

This white metal tower stands 49 meters tall with a focal height of 35 meters. It emits a single white flash every 5 seconds. The lighthouse is operational and guides mariners with a geographic range of 7 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
35m
Geographic Range
7NM

Location

City
Okayama and Hiroshima
Country
🇯🇵JP
Latitude
34.5123°
Longitude
134.0156°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
49m
Tower Color
white
Material
metal

Structure: White metal tower; 49

References & Identifiers

Admiralty No.
M5748
NGA No.
8070
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Frequently Asked Questions

How do mariners identify Ohiru Shima Lighthouse at night?+
Ohiru Shima displays the characteristic Fl W 5s — 1 white 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.
Which ports and harbors does Ohiru Shima Lighthouse guide vessels into?+
Ohiru Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Yamada at 2.2 NM to the N. Other ports served include Ieura (2.6 NM ESE), Uno (3.3 NM WSW), Naoshima (3.4 NM SSW), Futamado (3.7 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ohiru Shima Lighthouse still active and maintained?+
Yes, Ohiru Shima 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 Ohiru Shima Lighthouse?+
Ohiru Shima 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 Ohiru Shima Lighthouse?+
You can track vessels near Ohiru Shima 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.