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Suttsu Kō Lighthouse

Fl Red 3s🇯🇵Suttu, JPOperational

Location & Light Range

About Suttsu Kō Lighthouse

A red, cylindrical concrete tower, 10 meters high with its lantern and gallery, is located at the end of Suttsu's main north breakwater. The light source is 16 meters above sea level and emits a red flash every three seconds. The site is open to visitors, but the tower is not. The closest port, Iwanai, is 17.1 kilometers distant.

Why it matters: This navigation aid marks the end of the main breakwater, assisting vessels navigating into and out of Suttsu port and identifying the harbor structure.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Suttu
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Located at the end of the north (main) breakwater of Suttsu.
Latitude
42.7928°
Longitude
140.2373°

References & Identifiers

Nearest Port
Iwanai(17.1 km)
Admiralty No.
M7010
NGA No.
1144
ARLHS No.
JPN-983

Tower & Structure

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

Structure: round cylindrical concrete tower with lantern and gallery

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 Suttsu Kō Lighthouse at night?+
Suttsu Kō displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Suttsu Kō Lighthouse guide vessels into?+
Suttsu Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Suttsu at 0.5 NM to the NNW. Other ports served include Iwanai (17.1 NM NE), Youra (24.5 NM ESE), Setana (27 NM SW), Furubira (33.8 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Suttsu Kō Lighthouse still active and maintained?+
Yes, Suttsu 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 Suttsu Kō Lighthouse?+
You can track vessels near Suttsu 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.