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Ajirosaki Lighthouse

Fl W 12s🇯🇵Honshu-North Coast, JPOperational

Ajirosaki Lighthouse is a maritime navigation aid located in Honshu-North Coast, JP. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 105 meters above mean sea level. Under standard atmospheric conditions, the light is visible up to 20 nautical miles (approximately 37.0 km) from the observer.

Light characteristic: The identifying signal of this lighthouse is Fl W 12s. This means the light produces 1 flash every 12 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light displays a white signal, the most common color for major coastal lights.

Visibility and range: With a focal height of 105 meters and a nominal range of 20 nautical miles, this light serves as a major coastal light visible from well offshore. Lights of this range are typically used as landfall lights by vessels approaching from the open sea, helping them make a safe approach to the coast.

Position: Ajirosaki Lighthouse is positioned at 35.5884°N, 134.2949°E, near Honshu-North Coast in JP. The blue circle on the map represents the nominal 20-nautical-mile range of the light.

Geographic context: Ajirosaki Lighthouse is situated on the Sea of Japan, within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. The location falls within the temperate maritime climate zone.

Nearby lighthouses in JP: Other lighthouses in the region include Abashiri East Breakwater, Abashiri Island Breakwater North End, Abashiri North Breakwater, Abashiri South Breakwater East End, Abuka Kō. View all on the Lighthouses Directory.

Characteristic Signature
Fl W 12s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
12s
Focal Height
105m
Light Range
20NM (37.0 km)
Status
ACTIVE
City
Honshu-North Coast
Country
🇯🇵JP
Latitude
35.5884°
Longitude
134.2949°
Flag
Type
Name
Dist.
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How far offshore can Ajirosaki Lighthouse be seen?+
With a focal height of 105 meters and a nominal range of 20 nautical miles (approximately 37.0 km), Ajirosaki is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. Lights of this range are typically used as landfall lights by vessels approaching from the open sea.
How do mariners identify Ajirosaki Lighthouse at night?+
Ajirosaki displays the characteristic Fl W 12s — 1 white flash every 12 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 Ajirosaki Lighthouse guide vessels into?+
Ajirosaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Tajiri, Tottori at 1.2 NM to the ENE. Other ports served include Tottori (5.8 NM WSW), Hamasaka (7.9 NM ENE), Shibayama (18.4 NM ENE), Yasugi (20.5 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ajirosaki Lighthouse still active and maintained?+
Yes, Ajirosaki 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 Ajirosaki Lighthouse?+
Ajirosaki 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 Ajirosaki Lighthouse?+
You can track vessels near Ajirosaki 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.