Susami Ko Lighthouse

With a focal height of 25 meters and a nominal range of 11 nautical miles (approximately 20.4 km), Susami 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.

Susami Ko displays the characteristic F WRG 5s — 1 wrg flash every 5 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. The wrg color may indicate a specific sector or warning zone.

Susami Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is SHIMOJI at 0.2 NM to the SSE. Other ports served include Mori (11.2 NM NNW), Tanabe (12.4 NM NNW), Fukuro (14.8 NM ESE), KUSHIMOTO (15.8 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.

Yes, Susami 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.

Susami 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.

You can track vessels near Susami 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.