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Shimo-Ninai Lighthouse

Fl (4) W 14s🇯🇵Yamaguchi, JPOperational

Location & Light Range

About Shimo-Ninai Lighthouse

Shimo-Ninai lighthouse emits four white flashes on a 14-second cycle. Its focal plane stands 118 meters above sea level. The light has a geographic range of 7 nautical miles. The lighthouse is currently operational.

Light & Optic

Characteristic Signature
Fl (4) W 14s
Flash Type
Flashing
Light Color
White
Flash Count
4 flashes
Interval
14s
Raw Code
Fl.(4)W. period 14s
Focal Height
118m
Geographic Range
7NM

References & Identifiers

Admiralty No.
M5628
NGA No.
9216

Location

City
Yamaguchi
Country
🇯🇵JP
Latitude
33.8480°
Longitude
132.1824°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Shimo-Ninai Lighthouse at night?+
Shimo-Ninai displays the characteristic Fl (4) W 14s — 4 white flashes every 14 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 Shimo-Ninai Lighthouse guide vessels into?+
Shimo-Ninai Lighthouse assists vessels approaching 5 nearby ports. The closest is Hirao at 6.6 NM to the NNW. Other ports served include Yanai (6.7 NM NNW), Kuka (7.4 NM NNE), Tsuzu Yamaguchi (12.2 NM N), Ihota (14 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shimo-Ninai Lighthouse still active and maintained?+
Yes, Shimo-Ninai 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 Shimo-Ninai Lighthouse?+
Shimo-Ninai 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 Shimo-Ninai Lighthouse?+
You can track vessels near Shimo-Ninai 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.