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Shiso Shima Lighthouse

Fl White 5s🇯🇵Shirahama, JPOperational

Location & Light Range

About Shiso Shima Lighthouse

Also known as: Siso

The Shiso (Siso) Shima Lighthouse stands on its namesake island in Japan's Wakayama Prefecture. Completed in 1976, this cylindrical concrete tower rises 12 meters high, with its light positioned 14 meters above sea level. It emits a white flash every five seconds, visible for 11.6 nautical miles. The structure features a gallery around its upper section and is located just 2.9 kilometers from the nearest port, Tanabe. This active aid guides coastal traffic in the region.

Why it matters: The lighthouse is important for local maritime traffic navigating the waters around Shiso (Siso) Shima, providing a consistent reference point for fishing fleets and coastal vessels.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1976

References & Identifiers

Nearest Port
Tanabe(2.9 km)
ARLHS No.
JPN-587

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Material
concrete

Structure: round cylindrical concrete tower with gallery

Location

City
Shirahama
Country
🇯🇵Japan
Region
Wakayama Prefecture
Sea Region
Located on Shiso (Siso) Shima island in Japan, guiding coastal traffic.
Latitude
33.6928°
Longitude
135.3267°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Shiso Shima Lighthouse at night?+
Shiso Shima displays the characteristic Fl White 5s. 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 Shiso Shima Lighthouse guide vessels into?+
Shiso Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Tanabe at 3 NM to the NE. Other ports served include Mori (3.5 NM ENE), Inami (9 NM NW), SHIMOJI (12 NM SE), Hidaka (13.9 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shiso Shima Lighthouse still active and maintained?+
Yes, Shiso Shima 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 Shiso Shima Lighthouse?+
Shiso Shima 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 Shiso Shima Lighthouse?+
You can track vessels near Shiso Shima 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.