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Iwafune Ko Lighthouse

Iso W 6s🇯🇵Honshu-Northwest Coast, JPOperational

Iwafune Ko Lighthouse is a maritime navigation aid located in Honshu-Northwest Coast, JP. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 44 meters above mean sea level. Under standard atmospheric conditions, the light is visible up to 12 nautical miles (approximately 22.2 km) from the observer.

Light characteristic: The identifying signal of this lighthouse is Iso W 6s. This means the light produces 1 flash every 6 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 44 meters and a nominal range of 12 nautical miles, this light serves as a significant coastal navigation aid. Vessels transiting along the coast or approaching from moderate distances can use this light for position fixing and course confirmation.

Position: Iwafune Ko Lighthouse is positioned at 38.1964°N, 139.4326°E, near Honshu-Northwest Coast in JP. The blue circle on the map represents the nominal 12-nautical-mile range of the light.

Geographic context: Iwafune Ko 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
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Focal Height
44m
Light Range
12NM (22.2 km)
Status
ACTIVE
City
Honshu-Northwest Coast
Country
🇯🇵JP
Latitude
38.1964°
Longitude
139.4326°
Flag
Type
Name
Dist.
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How far offshore can Iwafune Ko Lighthouse be seen?+
With a focal height of 44 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Iwafune Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Iwafune Ko Lighthouse at night?+
Iwafune Ko displays the characteristic Iso W 6s — 1 white flash every 6 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 Iwafune Ko Lighthouse guide vessels into?+
Iwafune Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Iwafune at 0.5 NM to the SSW. Other ports served include Ii (14.3 NM SW), Niigatahigashi (14.3 NM SW), Niigata (18.1 NM SW), Uchiura, Ishikawa (18.2 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iwafune Ko Lighthouse still active and maintained?+
Yes, Iwafune Ko 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 Iwafune Ko Lighthouse?+
Iwafune Ko 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 Iwafune Ko Lighthouse?+
You can track vessels near Iwafune Ko 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.