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Nemuro Kō South Breakwater Lighthouse

Fl (2) Green 6s🇯🇵Nemuro, JPOperational

Location & Light Range

About Nemuro Kō South Breakwater Lighthouse

This lighthouse stands as a cylindrical concrete tower, painted white, with a height of 8 meters. It is situated at the southern entrance to Nemuro harbor, specifically at the end of the long south breakwater that connects to Bentenjima island. First lit in 1926, the structure is 11 meters above sea level. The light emits a green signal, characterized by a single flash every six seconds, visible for 10.7 nautical miles. It guides vessels into Nemuro harbor, located 0.4 kilometers from the nearest port.

Why it matters: This structure holds historical significance as the oldest harbor light in the region, established in 1926.

Light & Optic

Characteristic Signature
Fl (2) Green 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl G 6s
Focal Height
11m
Geographic Range
10.7NM

Construction & History

Year Built
1926

References & Identifiers

Nearest Port
Nemuro(0.4 km)
Admiralty No.
M6852
NGA No.
0432
USCG No.
JCG-0204

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower with lantern and gallery, painted white

Location

City
Nemuro
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
south end of the long south (really west) breakwater at the south entrance to Nemuro harbor, on the north side of the peninsula. The breakwater is attached to an island, Bentenjima.
Latitude
43.3381°
Longitude
145.5732°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Nemuro Kō South Breakwater Lighthouse at night?+
Nemuro Kō South Breakwater displays the characteristic Fl (2) Green 6s — 2 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Nemuro Kō South Breakwater Lighthouse guide vessels into?+
Nemuro Kō South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Nemuro at 0.5 NM to the ESE. Other ports served include Nasa (3.3 NM S), Hanasaki (3.4 NM S), Kiritappu (24.8 NM SW), Shibetsu (27.2 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nemuro Kō South Breakwater Lighthouse still active and maintained?+
Yes, Nemuro Kō South Breakwater 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.
How can I track vessels near Nemuro Kō South Breakwater Lighthouse?+
You can track vessels near Nemuro Kō South Breakwater 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.