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Uryū Saki Lighthouse

Iso White 6s🇯🇵Kamiamakusa, JPOperational

Location & Light Range

About Uryū Saki Lighthouse

This concrete lighthouse, built in 1968, stands 10.5 meters tall on a sharp promontory on the northeast coast of Amakusa Kami Shima. Its round, cylindrical tower is attached to a 1-story equipment room. The light emits an isophase white flash on a 6-second cycle from a focal height of 37 meters, with a geographic range of 16.6 nautical miles. The operational lighthouse is located in Kamiamakusa, within Kumamoto Prefecture. While the site is open to visitors, the tower itself remains closed to the public.

Why it matters: The light warns mariners of the distinct headland, ensuring safer passage through the challenging waters around Amakusa Kami Shima and helping to prevent groundings.

Light & Optic

Characteristic Signature
Iso White 6s
Flash Type
Isophase
Light Color
White
Interval
6s
Raw Code
Iso W 6s
Focal Height
37m
Geographic Range
16.6NM

Construction & History

Year Built
1968

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10.5m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower attached to a small 1-story equipment room

Location

City
Kamiamakusa
Country
🇯🇵Japan
Region
Kumamoto Prefecture
Sea Region
on a sharp promontory on the northeast coast of Amakusa Kami Shima
Latitude
32.4325°
Longitude
130.4235°

References & Identifiers

Nearest Port
Futamado(1.1 km)
ARLHS No.
JPN-723
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Frequently Asked Questions

How do mariners identify Uryū Saki Lighthouse at night?+
Uryū Saki displays the characteristic Iso White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Uryū Saki Lighthouse guide vessels into?+
Uryū Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Himedo at 0.4 NM to the WNW. Other ports served include Nagame (1 NM N), Tanasoko (4.5 NM WSW), Amura (5.7 NM NNE), TAURA (6.1 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uryū Saki Lighthouse still active and maintained?+
Yes, Uryū Saki 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 Uryū Saki Lighthouse?+
Uryū Saki 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 Uryū Saki Lighthouse?+
You can track vessels near Uryū Saki 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.