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Uta Saki Lighthouse

Fl White 4s🇯🇵Matsuyama, JPOperational

Location & Light Range

About Uta Saki Lighthouse

The Uta Saki lighthouse is a white, cylindrical concrete tower standing 12 meters tall. Its focal plane is 14 meters above sea level. The light emits a single white flash every four seconds, visible for 11.6 nautical miles. Located at the northernmost point of Nakajima island, this active lighthouse serves maritime traffic in the region. Access to the site is permitted, but the tower itself remains closed to the public. The nearest port is Hojo, 6.5 kilometers away.

Why it matters: This lighthouse marks the extreme northern tip of Nakajima island, providing a key reference point for vessels navigating these waters and preventing groundings.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
14m
Geographic Range
11.6NM

Location

City
Matsuyama
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
Located at the extreme northern tip of the island of Nakajima.
Latitude
34.0183°
Longitude
132.6454°

References & Identifiers

Nearest Port
Hojo(6.5 km)
Admiralty No.
M5651.3
NGA No.
8900
ARLHS No.
JPN-2425

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Uta Saki Lighthouse at night?+
Uta Saki displays the characteristic Fl White 4s. 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 Uta Saki Lighthouse guide vessels into?+
Uta Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Hojo at 6.7 NM to the ESE. Other ports served include Osako (6.7 NM NNW), Tainouchi (7.7 NM NW), Matsuyama (9.1 NM SSE), Kikuma (9.5 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uta Saki Lighthouse still active and maintained?+
Yes, Uta 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 Uta Saki Lighthouse?+
Uta 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 Uta Saki Lighthouse?+
You can track vessels near Uta 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.