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Shibayama Ko Lighthouse

Fl W 3s🇯🇵Honshu-North Coast, JPOperational

Location & Light Range

About Shibayama Ko Lighthouse

Shibayama Ko is a 15-meter quadrilateral tower constructed of fiberglass on the Honshu-North Coast. The structure displays a red and white rectangular daymark. It emits a single white flash every 3 seconds, with a focal height of 99 meters. The lighthouse is operational.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Raw Code
Fl.W. period 3s
Focal Height
99m
Light Range
7NM (13.0 km)
Geographic Range
7NM

Location

City
Honshu-North Coast
Country
🇯🇵JP
Latitude
35.6635°
Longitude
134.6650°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
15m
Tower Shape
quadrilateral
Tower Color
white and red
Material
fiberglass

Structure: Quadrilateral latticed tower, red and white rectangular daymark; 15. LA POILE BAY:

References & Identifiers

Admiralty No.
M7280
NGA No.
2400
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Frequently Asked Questions

How far offshore can Shibayama Ko Lighthouse be seen?+
With a focal height of 99 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Shibayama Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Shibayama Ko Lighthouse at night?+
Shibayama Ko displays the characteristic Fl W 3s — 1 white flash every 3 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 Shibayama Ko Lighthouse guide vessels into?+
Shibayama Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Shibayama at 0.6 NM to the S. Other ports served include Yasugi (2 NM ESE), Tsui (8.4 NM E), Tsuiyama (8.4 NM E), Hamasaka (10.8 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shibayama Ko Lighthouse still active and maintained?+
Yes, Shibayama Ko 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 Shibayama Ko Lighthouse?+
Shibayama Ko 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 Shibayama Ko Lighthouse?+
You can track vessels near Shibayama Ko 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.