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Tsumurisaki Lighthouse

Fl (2) W 6s🇯🇵Seto Naikai Western, JPOperational

This white, round concrete tower stands 36 meters tall. Its light displays two white flashes every 6 seconds. The focal height for this navigational aid reaches 47 meters. Its geographic range extends for 7 nautical miles.

Characteristic Signature
Fl (2) W 6s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
6s
Raw Code
Fl.(2)W. period 6s
Focal Height
47m
Light Range
7NM (13.0 km)
Geographic Range
7NM
City
Seto Naikai Western
Country
🇯🇵JP
Latitude
33.9265°
Longitude
132.7021°
Flag
Type
Name
Dist.
Tower Height
36m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 36

Admiralty No.
M5437
NGA No.
8812
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How far offshore can Tsumurisaki Lighthouse be seen?+
With a focal height of 47 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Tsumurisaki is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Tsumurisaki Lighthouse at night?+
Tsumurisaki displays the characteristic Fl (2) W 6s — 2 white 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.
Which ports and harbors does Tsumurisaki Lighthouse guide vessels into?+
Tsumurisaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Matsuyama at 3 NM to the S. Other ports served include Masaki (4.6 NM S), Mitsuhama (4.6 NM S), Hojo (4.8 NM NE), Kikuma (9.2 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tsumurisaki Lighthouse still active and maintained?+
Yes, Tsumurisaki 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.
What shipping routes pass near Tsumurisaki Lighthouse?+
Tsumurisaki Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Tsumurisaki Lighthouse?+
You can track vessels near Tsumurisaki 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.