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Kourasaki Lighthouse

Fl W 3s🇯🇵Seto Naikai Western, JPOperational

Location & Light Range

About Kourasaki Lighthouse

Kourasaki Lighthouse emits a white flash every 3 seconds. This light has a focal height of 27 meters and a geographic range of 7 nautical miles. The lighthouse is operational and located within the Seto Naikai Western region.

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
27m
Light Range
7NM (13.0 km)
Geographic Range
7NM

References & Identifiers

Admiralty No.
M5459.7
NGA No.
8736
OpenStreetMap
View on OSM →

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
34.1186°
Longitude
132.9895°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Kourasaki Lighthouse be seen?+
With a focal height of 27 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Kourasaki 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 Kourasaki Lighthouse at night?+
Kourasaki 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 Kourasaki Lighthouse guide vessels into?+
Kourasaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Hashihama at 1 NM to the WSW. Other ports served include Namikata (1.8 NM WNW), Yoshiumi (3.4 NM NE), Imabari (3.6 NM SSE), Okamura (6.3 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kourasaki Lighthouse still active and maintained?+
Yes, Kourasaki 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 Kourasaki Lighthouse?+
Kourasaki 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 Kourasaki Lighthouse?+
You can track vessels near Kourasaki 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.