Tomakomai Ko Lighthouse

With a focal height of 17 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Tomakomai Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.

Tomakomai Ko displays the characteristic Fl (2) R 6s — 2 red flashes 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. The red color may indicate a specific sector or warning zone.

Tomakomai Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Tomakomai at 6.9 NM to the WNW. Other ports served include Shiraoi (20.4 NM W), Niikappu (27.4 NM ESE), Noboribetsu (27.9 NM WSW), Muroran (38.3 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.

Tomakomai Ko Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.

You can track vessels near Tomakomai 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.