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Yui Kō Lighthouse

F Green 6s🇯🇵Shizuoka, JPOperational

Location & Light Range

About Yui Kō Lighthouse

Yui Kō lighthouse, built in 1966, is located at the end of the outer breakwater for Yui harbor. This cylindrical concrete post structure measures 8.5 meters in height and includes a 1-story concrete equipment shelter. With a focal height of 13 meters, it displays a green flashing light, characterized by a single flash every 6 seconds (F.Fl G 6s). The tower displays white, red, and green colors and offers a visible range of 11.3 nautical miles. Positioned at the northwestern corner of Suruga Bay, it marks the entrance to the fishing harbor.

Why it matters: This lighthouse serves as a navigation aid for the many fishing vessels that use Yui harbor, assisting their safe passage into the port.

Light & Optic

Characteristic Signature
F Green 6s
Flash Type
Fixed
Light Color
Green
Interval
6s
Raw Code
F.Fl G 6s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

Year Built
1966

References & Identifiers

Nearest Port
Shimizu(5.1 km)
Admiralty No.
M6263
NGA No.
5668
ARLHS No.
JPN-1459

Tower & Structure

Tower Height
8.5m
Tower Shape
cylindrical
Tower Color
white and red and green
Material
concrete

Structure: An 8.5m concrete post with a 1-story concrete equipment shelter.

Location

City
Shizuoka
Country
🇯🇵Japan
Region
Shizuoka Prefecture
Sea Region
Located at the end of the outer breakwater of Yui harbor, a fishing harbor at the northwestern corner of Suruga Bay.
Latitude
35.1014°
Longitude
138.5581°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Yui Kō Lighthouse at night?+
Yui Kō displays the characteristic F Green 6s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Yui Kō Lighthouse guide vessels into?+
Yui Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Himi at 5.8 NM to the SSW. Other ports served include Shimizu (5.8 NM SSW), Agonoura (7.2 NM ENE), Gonoura (7.2 NM ENE), Tagonoura (7.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yui Kō Lighthouse still active and maintained?+
Yes, Yui Kō 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 Yui Kō Lighthouse?+
Yui Kō 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 Yui Kō Lighthouse?+
You can track vessels near Yui Kō 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.