Futaoishima Lighthouse

Futaoishima 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 103 meters above mean sea level. Under standard atmospheric conditions, the light is visible up to 22 nautical miles (approximately 40.7 km) from the observer.

Light characteristic: The identifying signal of this lighthouse is Fl (3) W 30s. This means the light produces 3 flashes every 30 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 103 meters and a nominal range of 22 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: Futaoishima Lighthouse is positioned at 34.0985°N, 130.7832°E, near Honshu-Northwest Coast in JP. The blue circle on the map represents the nominal 22-nautical-mile range of the light.

Geographic context: Futaoishima 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 subtropical climate zone with mild winters and warm summers.

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.