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Senpōshi Saki Lighthouse

Fl W 5s🇯🇵Rishiri and Rebun, Hokkaido, JPOperational

Location & Light Range

About Senpōshi Saki Lighthouse

This lighthouse is a 29-meter-tall quadrilateral latticed metal tower painted white and red. A red and white rectangular daymark is visible on the structure. The light emits a single white flash every 5 seconds. Its focal height matches the tower's height at 29 meters. The lighthouse is operational and has a geographic range of 12 nautical miles.

Why it matters: This lighthouse marks the coast of Rishiri and Rebun in Hokkaido.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
29m
Geographic Range
12NM

Location

City
Rishiri and Rebun, Hokkaido
Country
🇯🇵JP
Latitude
45.0981°
Longitude
141.2368°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
29m
Tower Shape
quadrilateral
Tower Color
white and red
Material
metal

Structure: Quadrilateral latticed tower, red and white rectangular daymark; 14

References & Identifiers

Admiralty No.
M6927
NGA No.
1388
OpenStreetMap
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Frequently Asked Questions

How do mariners identify Senpōshi Saki Lighthouse at night?+
Senpōshi Saki displays the characteristic Fl W 5s — 1 white flash every 5 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.
Which ports and harbors does Senpōshi Saki Lighthouse guide vessels into?+
Senpōshi Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Iwaki at 3.8 NM to the ENE. Other ports served include Oniwaki (3.9 NM NE), Kutsugata (7 NM NW), Oshidomari (8.7 NM N), Shido (8.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Senpōshi Saki Lighthouse still active and maintained?+
Yes, Senpōshi Saki 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 Senpōshi Saki Lighthouse?+
You can track vessels near Senpōshi Saki 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.