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Otaru South Breakwater Lighthouse

Fl (2) G 6s🇯🇵Western Hokkaidō, JPOperational

Location & Light Range

About Otaru South Breakwater Lighthouse

This concrete lighthouse stands 16 meters tall with a focal plane of 15 meters. The tower is conical in shape and painted white and red, featuring a quadrilateral latticed structure with a red and white rectangular daymark. Its light emits two white flashes followed by one red flash every 27 seconds. The geographic range of this light is 5 nautical miles.

Light & Optic

Characteristic Signature
Fl (2) G 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl.(2+1)W.R. period 27s
Focal Height
15m
Geographic Range
5NM

Location

City
Western Hokkaidō
Country
🇯🇵JP
Latitude
43.1979°
Longitude
141.0246°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
16m
Tower Shape
conical
Tower Color
white and red
Material
concrete

Structure: Quadrilateral latticed tower, red and white rectangular daymark; 16

References & Identifiers

Admiralty No.
M6989
NGA No.
1228
ARLHS No.
JPN-949
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Frequently Asked Questions

How do mariners identify Otaru South Breakwater Lighthouse at night?+
Otaru South Breakwater displays the characteristic Fl (2) G 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 Otaru South Breakwater Lighthouse guide vessels into?+
Otaru South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Otaru at 0.3 NM to the WNW. Other ports served include Yoichi (10.6 NM W), Ishikari (11.7 NM E), Ishikariwan Shinko (12.1 NM E), Wan (15.1 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Otaru South Breakwater Lighthouse still active and maintained?+
Yes, Otaru 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 Otaru South Breakwater Lighthouse?+
You can track vessels near Otaru 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.