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Omojiiwa Lighthouse

Fl W 3s🇯🇵Seto Naikai Western, JPOperational

Location & Light Range

About Omojiiwa Lighthouse

The Omojiiwa Lighthouse stands as a white tower 49 meters in height. Its light emits a single white flash, repeating every 3 seconds. The structure provides visibility within the sector from 031 degrees to 330 degrees. The focal plane of the light is situated 15 meters above sea level. This lighthouse is operational and has a geographic range of 5 nautical miles.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Raw Code
Fl.W. period 3s
Focal Height
15m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
34.0099°
Longitude
130.8120°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
49m
Tower Color
white

Structure: White tower; 49. Visible 031°-330°

References & Identifiers

Admiralty No.
M5326
NGA No.
9952
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Frequently Asked Questions

How far offshore can Omojiiwa Lighthouse be seen?+
With a focal height of 15 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Omojiiwa 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 Omojiiwa Lighthouse at night?+
Omojiiwa displays the characteristic Fl W 3s — 1 white 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.
Which ports and harbors does Omojiiwa Lighthouse guide vessels into?+
Omojiiwa Lighthouse assists vessels approaching 5 nearby ports. The closest is Hibikishinko at 3.5 NM to the WSW. Other ports served include Mutsure (3.8 NM SE), Ikina (4.7 NM SSE), Ina (4.7 NM SSE), Tobata/Kitakyushu (6.2 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Omojiiwa Lighthouse still active and maintained?+
Yes, Omojiiwa 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 Omojiiwa Lighthouse?+
Omojiiwa 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 Omojiiwa Lighthouse?+
You can track vessels near Omojiiwa 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.