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Fukuyoshi (Iso Saki) Kō Lighthouse

Fl Red 5s🇯🇵Itoshima, JPOperational

Established in 1985, the Fukuyoshi (Iso Saki) Kō Lighthouse stands 13 meters tall and emits a red flash every five seconds. This navigational aid is situated in Itoshima, Fukuoka Prefecture, marking the waters near Fukuyoshi Port. Its geographic range extends to 11.3 nautical miles. The tower is closed to the public, but the surrounding site is accessible. The lighthouse was constructed to bolster safety for diverse maritime activities in the region.

Why it matters: The lighthouse is essential for vessels entering and exiting Fukuyoshi Port, providing a key visual cue to identify the entrance and navigate coastal hazards safely.

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
13m
Geographic Range
11.3NM
Year Built
1985
Open to public
Site open, tower closed
Flag
Type
Name
Dist.

Structure: Fukuyoshi (Iso Saki) Kō Lighthouse, established in 1985, guides mariners navigating the waters near Fukuyoshi Port in Japan. This relatively modern aid to navigation plays a quiet but essential role in the local maritime landscape, ensuring the safe passage of vessels. Its distinctive red flash, appearing every five seconds, serves as a clear and consistent signal for ships approaching or departing the harbor, particularly crucial during nighttime or in adverse weather conditions. The lighthouse was built to enhance safety for the various types of maritime traffic that frequent this coastal area, from local fishing boats returning with their catch to larger cargo vessels. While the tower itself remains closed to the public, visitors can still access the surrounding site, offering a peaceful vantage point to observe this functional structure against the backdrop of the Japanese coastline. It embodies the ongoing dedication to maritime safety in a region where the sea is deeply intertwined with the community's daily life and economy.

City
Itoshima
Country
🇯🇵Japan
Region
Fukuoka Prefecture
Sea Region
Located in Japan, likely marking the entrance to Fukuyoshi Port or a significant coastal point nearby.
Latitude
33.5053°
Longitude
130.0864°
Nearest Port
Kashikojima(6.2 km)
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How do mariners identify Fukuyoshi (Iso Saki) Kō Lighthouse at night?+
Fukuyoshi (Iso Saki) Kō displays the characteristic Fl Red 5s. 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. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Fukuyoshi (Iso Saki) Kō Lighthouse guide vessels into?+
Fukuyoshi (Iso Saki) Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Kafuri at 4.6 NM to the NE. Other ports served include Karatsu (6.1 NM WSW), Tobo (7.8 NM W), Yobuko (9.9 NM WNW), Ogi (14.5 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Fukuyoshi (Iso Saki) Kō Lighthouse still active and maintained?+
Yes, Fukuyoshi (Iso Saki) Kō 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 Fukuyoshi (Iso Saki) Kō Lighthouse?+
Fukuyoshi (Iso Saki) Kō 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 Fukuyoshi (Iso Saki) Kō Lighthouse?+
You can track vessels near Fukuyoshi (Iso Saki) Kō 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.