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Yunotsu Ko Lighthouse

Fl WR 2s🇯🇵Honshu-Northwest Coast, JPOperational

Location & Light Range

About Yunotsu Ko Lighthouse

Yunotsu Ko Lighthouse features a white, hexagonal tower constructed from fiberglass. This structure reaches a height of 45 meters, with its light positioned at a focal height of 68 meters above sea level. The lighthouse emits a white or red light, displaying a single flash every 2 seconds. Additionally, a foghorn is integrated into the station, producing a 4-second blast at 60-second intervals. The horn is directed towards 109 degrees.

Light & Optic

Characteristic Signature
Fl WR 2s
Flash Type
Flashing
Light Color
WR
Flash Count
1 flash
Interval
2s
Raw Code
Fl.W.R. period 2s
Focal Height
68m
Light Range
7NM (13.0 km)
Geographic Range
7NM

Location

City
Honshu-Northwest Coast
Country
🇯🇵JP
Latitude
35.0980°
Longitude
132.3382°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
45m
Tower Shape
hexagonal
Tower Color
white
Material
fiberglass

Structure: White hexagonal tower; 45. Horn: 1bl. ev. 60s (bl. 4s, si. 56s) Horn points 109°

References & Identifiers

Admiralty No.
M7346
NGA No.
1868
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Frequently Asked Questions

How far offshore can Yunotsu Ko Lighthouse be seen?+
With a focal height of 68 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Yunotsu 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 Yunotsu Ko Lighthouse at night?+
Yunotsu Ko displays the characteristic Fl WR 2s — 1 wr flash every 2 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 wr color may indicate a specific sector or warning zone.
Which ports and harbors does Yunotsu Ko Lighthouse guide vessels into?+
Yunotsu Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Yunotsu at 0.2 NM to the SE. Other ports served include Amiya (3.6 NM NE), Nima (4.7 NM NE), Takuno (5.2 NM NE), Hamada (19.5 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yunotsu Ko Lighthouse still active and maintained?+
Yes, Yunotsu 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 Yunotsu Ko Lighthouse?+
Yunotsu 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 Yunotsu Ko Lighthouse?+
You can track vessels near Yunotsu 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.