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Shiroyama North Breakwater Lighthouse

Fl Green 3s🇯🇵Kami, JPOperational

Location & Light Range

About Shiroyama North Breakwater Lighthouse

This white, cylindrical concrete lighthouse stands 10 meters tall at the end of the north breakwater of Kasumi's Shiroyama harbor in Kami, Hyogo Prefecture. Its focal height reaches 13 meters above sea level. The structure is described as a round hourglass-shaped tower. Since its establishment in 1949, it has emitted a single green flash every 3 seconds, visible for 11.3 nautical miles. The site is open to the public, allowing access to the base of the tower.

Why it matters: The lighthouse marks the northern edge of the safe channel into Shiroyama harbor, a critical port for local commerce and fishing.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

First Lit
1949

Significant events: station established 1949

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round hourglass-shaped white concrete tower

Location

City
Kami
Country
🇯🇵Japan
Region
Hyogo Prefecture
Sea Region
end of the north breakwater of Kasumi's Shiroyama harbor
Latitude
35.6468°
Longitude
134.6264°

References & Identifiers

Nearest Port
Shibayama(1.9 km)
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Frequently Asked Questions

How do mariners identify Shiroyama North Breakwater Lighthouse at night?+
Shiroyama North Breakwater displays the characteristic Fl Green 3s. 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 Shiroyama North Breakwater Lighthouse guide vessels into?+
Shiroyama North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Shibayama at 1.9 NM to the ENE. Other ports served include Yasugi (3.9 NM E), Hamasaka (8.8 NM W), Tsui (10.2 NM E), Tsuiyama (10.2 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shiroyama North Breakwater Lighthouse still active and maintained?+
Yes, Shiroyama North Breakwater 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 Shiroyama North Breakwater Lighthouse?+
Shiroyama North Breakwater 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 Shiroyama North Breakwater Lighthouse?+
You can track vessels near Shiroyama North Breakwater 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.