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Rumoi North Breakwater Lighthouse

Fl G 3s🇯🇵Western Hokkaidō, JPOperational

Location & Light Range

About Rumoi North Breakwater Lighthouse

A 16-meter quadrilateral latticed tower marks the Rumoi North Breakwater. Constructed from fiberglass, the structure features a white and green daymark. Its light produces two green flashes every 6 seconds. The light has a geographic range of 7 nautical miles.

Light & Optic

Characteristic Signature
Fl G 3s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
3s
Raw Code
Fl.(2)G. period 6s
Focal Height
12m
Geographic Range
7NM

Location

City
Western Hokkaidō
Country
🇯🇵JP
Latitude
43.9627°
Longitude
141.6225°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
16m
Tower Shape
quadrilateral
Tower Color
white and green
Material
fiberglass

Structure: Quadrilateral latticed tower, green and white daymark; 16

References & Identifiers

Admiralty No.
M6960.8
NGA No.
1280
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Frequently Asked Questions

How do mariners identify Rumoi North Breakwater Lighthouse at night?+
Rumoi North Breakwater displays the characteristic Fl G 3s — 1 green flash every 3 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Rumoi North Breakwater Lighthouse guide vessels into?+
Rumoi North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Rumoi at 0.7 NM to the SE. Other ports served include Mashike (7.8 NM SSW), Tomamae (21.3 NM N), Haboro (24.8 NM N), Yagishiri (29.9 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Rumoi North Breakwater Lighthouse still active and maintained?+
Yes, Rumoi 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 Rumoi North Breakwater Lighthouse?+
You can track vessels near Rumoi 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.