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Yuya Ko Lighthouse

Occ (2) W 12s🇯🇵Honshu-Northwest Coast, JPOperational

Location & Light Range

About Yuya Ko Lighthouse

Yuya Ko lighthouse is a 15-meter-tall quadrilateral tower constructed from fiberglass. The structure is painted white and red and features a rectangular daymark of the same colors. Its white light exhibits two occulting flashes every 12 seconds. The focal height of the light is 40 meters above sea level.

Light & Optic

Characteristic Signature
Occ (2) W 12s
Flash Type
Occ
Light Color
White
Flash Count
2 flashes
Interval
12s
Raw Code
Oc.(2)W. period 12s
Focal Height
40m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Honshu-Northwest Coast
Country
🇯🇵JP
Latitude
34.3926°
Longitude
130.9332°

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

References & Identifiers

Admiralty No.
M7394
NGA No.
1600
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Frequently Asked Questions

How far offshore can Yuya Ko Lighthouse be seen?+
With a focal height of 40 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Yuya 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 Yuya Ko Lighthouse at night?+
Yuya Ko displays the characteristic Occ (2) W 12s — 2 white flashes every 12 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 Yuya Ko Lighthouse guide vessels into?+
Yuya Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Awano at 2.8 NM to the SE. Other ports served include Tsunoshima (4.3 NM SW), Kottoi (4.9 NM SSW), Fukawa (12.3 NM E), Kogushi, Yamaguchi (13 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yuya Ko Lighthouse still active and maintained?+
Yes, Yuya 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 Yuya Ko Lighthouse?+
Yuya 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 Yuya Ko Lighthouse?+
You can track vessels near Yuya 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.