Konbumori Lighthouse

With a focal height of 90 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Konbumori 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.

Konbumori displays the characteristic Fl WR 5s — 1 wr 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 wr color may indicate a specific sector or warning zone.

Konbumori Lighthouse assists vessels approaching 4 nearby ports. The closest is Shiro at 7 NM to the WNW. Other ports served include Kushiro (7.4 NM WNW), Akkeshi (15.5 NM ENE), Kiritappu (27.8 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.

Konbumori 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 Konbumori 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.

It is a fixed navigational aid on the coast at Hokkaido-South Coast, JP. Mariners identify it by its light characteristic — the pattern, colour and timing of its flashes — which is unique among the lights in its area, so a bearing on it fixes a vessel’s position without instruments.