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Shiribeshi Tomari Kō Lighthouse

Fl (2) White 8s🇯🇵Tomari, JPOperational

Location & Light Range

About Shiribeshi Tomari Kō Lighthouse

Constructed in 1966, this lighthouse is situated on a bluff south of Tomari harbor, on the southern side of the Shakotan peninsula. The structure consists of a post supporting a large semicircular lantern room. Its primary white light flashes once every 8 seconds. In addition to the main signal, a continuous white spotlight is directed at a nearby reef to improve maritime safety. The lighthouse site is accessible to the public, but the tower itself is closed.

Why it matters: The lighthouse is important for guiding vessels into Tomari Kō and illuminating a hazardous reef with a dedicated spotlight. Its design also relates to other regional lighthouses from the mid-20th century.

Light & Optic

Characteristic Signature
Fl (2) White 8s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
8s
Raw Code
Fl W 8s
Focal Height
30m
Geographic Range
15.3NM

Construction & History

Year Built
1966

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Color
white with one red horizontal band

Structure: post with a large semicircular lantern structure

Location

City
Tomari
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
on a bluff south of the harbor of Tomari, on the south side of the Shakotan peninsula
Latitude
43.0681°
Longitude
140.4916°

References & Identifiers

Nearest Port
Iwanai(4.6 km)
Admiralty No.
M7005.7
NGA No.
1160
ARLHS No.
JPN-580
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Frequently Asked Questions

How do mariners identify Shiribeshi Tomari Kō Lighthouse at night?+
Shiribeshi Tomari Kō displays the characteristic Fl (2) White 8s — 2 white flashes every 8 seconds. 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 Shiribeshi Tomari Kō Lighthouse guide vessels into?+
Shiribeshi Tomari Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Iwanai at 4.7 NM to the SSE. Other ports served include Furubira (13.9 NM NNE), Yoichi (15.2 NM ENE), Suttsu (19.7 NM SW), Otaru (24.4 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shiribeshi Tomari Kō Lighthouse still active and maintained?+
Yes, Shiribeshi Tomari 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.
How can I track vessels near Shiribeshi Tomari Kō Lighthouse?+
You can track vessels near Shiribeshi Tomari 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.