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Kudō Kō Lighthouse

Fl (2) Red 6s🇯🇵Setana, JPOperational

Location & Light Range

About Kudō Kō Lighthouse

The Kudō Kō lighthouse is a 10-meter tall, red, cylindrical concrete tower. Its light is positioned at a focal height of 17 meters and shows a red flash every six seconds, with a range of 12.4 nautical miles. The lighthouse, which features a lantern and gallery, was moved from the end of the main south breakwater to a new detached breakwater.

Why it matters: This navigation aid is important for ships navigating the harbor entrance at Kudō Kō. Its repositioning reflects ongoing port improvements aimed at maintaining safe passage.

Light & Optic

Characteristic Signature
Fl (2) Red 6s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl R 6s
Focal Height
17m
Geographic Range
12.4NM

Construction & History

Significant events: relocated from the end of the south (main) breakwater to a new detached breakwater

References & Identifiers

Nearest Port
Okushiri(13.7 km)
ARLHS No.
JPN-899

Tower & Structure

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

Structure: round cylindrical concrete tower with lantern and gallery

Location

City
Setana
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Kudō Kō, marking a new detached breakwater just beyond the former south breakwater.
Latitude
42.2192°
Longitude
139.8258°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kudō Kō Lighthouse at night?+
Kudō Kō displays the characteristic Fl (2) Red 6s — 2 red flashes every 6 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Kudō Kō Lighthouse guide vessels into?+
Kudō Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Okushiri at 13.7 NM to the W. Other ports served include Setana (13.8 NM N), Aonae (19.2 NM WSW), Motomachi (20.2 NM SE), Esashi/Hiyama (24.9 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kudō Kō Lighthouse still active and maintained?+
Yes, Kudō 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 Kudō Kō Lighthouse?+
You can track vessels near Kudō 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.