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Kō North Breakwater Lighthouse

Fl R 4s🇯🇵Western Hokkaidō, JPOperational

Location & Light Range

About Kō North Breakwater Lighthouse

This lighthouse stands on the Kō North Breakwater in Western Hokkaidō. Its focal height reaches 15 meters above sea level. The light emits a single white flash every 10 seconds, with a geographic range of 20 nautical miles. This aid is operational and displays a red light.

Light & Optic

Characteristic Signature
Fl R 4s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl.W. period 10s
Focal Height
15m
Geographic Range
20NM

References & Identifiers

Admiralty No.
M6939
NGA No.
1336

Location

City
Western Hokkaidō
Country
🇯🇵JP
Latitude
44.4333°
Longitude
141.3330°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kō North Breakwater Lighthouse at night?+
Kō North Breakwater displays the characteristic Fl R 4s — 1 red flash every 4 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 Kō North Breakwater Lighthouse guide vessels into?+
Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Teuri at 0.4 NM to the NNW. Other ports served include Nishiura (2.9 NM E), Yagishiri (4.2 NM E), Tomamae (15.4 NM ESE), Haboro (16.2 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kō North Breakwater Lighthouse still active and maintained?+
Yes, Kō 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.
How can I track vessels near Kō North Breakwater Lighthouse?+
You can track vessels near Kō 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.