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Okino Shima Lighthouse

Fl W 5s🇯🇵Shimane, JPOperational

Location & Light Range

About Okino Shima Lighthouse

Okino Shima Lighthouse is a red, square framework tower constructed of concrete. It stands 26 meters tall, with its light positioned 82 meters above sea level. The lighthouse emits an isophase white light, with a 2-second cycle. Its geographic range extends to 9 nautical miles. The structure includes a lantern and gallery atop the main tower, attached to a single-story equipment room.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Iso.R. period 2s
Focal Height
82m
Geographic Range
9NM

Location

City
Shimane
Country
🇯🇵JP
Latitude
36.3544°
Longitude
133.2769°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
26m
Tower Shape
square
Tower Color
red
Material
concrete

Structure: Red framework tower; 26

References & Identifiers

Admiralty No.
M5076
NGA No.
12440
ARLHS No.
JPN-485
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Frequently Asked Questions

How do mariners identify Okino Shima Lighthouse at night?+
Okino 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 Okino Shima Lighthouse guide vessels into?+
Okino Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Oki at 9.2 NM to the SSE. Other ports served include Ama, Hyogo (17.6 NM SSW), Nakanoshima (17.9 NM SSW), Chichii (18.4 NM SSW), Beppu, Shimane (18.6 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Okino Shima Lighthouse still active and maintained?+
Yes, Okino 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 Okino Shima Lighthouse?+
Okino 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 Okino Shima Lighthouse?+
You can track vessels near Okino 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.