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Sendai South Breakwater Head Lighthouse

Fl (2) G 6s🇯🇵Honshu-East Coast, JPOperational

This lighthouse stands on the Honshu-East Coast, marking the south breakwater head at Sendai. The structure is an 18-meter-tall octagonal concrete tower painted green. Its focal plane is 17 meters above sea level. The light emits a single green flash. It has a geographic range of 4 nautical miles.

Characteristic Signature
Fl (2) G 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl
Focal Height
17m
Light Range
5NM (9.3 km)
Geographic Range
4NM
City
Honshu-East Coast
Country
🇯🇵JP
Latitude
38.2655°
Longitude
141.0466°
Flag
Type
Name
Dist.
Tower Height
18m
Tower Shape
octagonal
Tower Color
green
Material
concrete

Structure: White tower; 46

Admiralty No.
M6521.1
NGA No.
4464
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How far offshore can Sendai South Breakwater Head Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Sendai South Breakwater Head 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.
How do mariners identify Sendai South Breakwater Head Lighthouse at night?+
Sendai South Breakwater Head 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 Sendai South Breakwater Head Lighthouse guide vessels into?+
Sendai South Breakwater Head Lighthouse assists vessels approaching 5 nearby ports. The closest is Sendaishiogama at 1.3 NM to the WNW. Other ports served include Satoura (3.1 NM NNW), Sendai, Miyagi (3.2 NM N), Isozaki (6.6 NM N), Takami (9.5 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sendai South Breakwater Head Lighthouse still active and maintained?+
Yes, Sendai South Breakwater Head 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.
What shipping routes pass near Sendai South Breakwater Head Lighthouse?+
Sendai South Breakwater Head 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.
How can I track vessels near Sendai South Breakwater Head Lighthouse?+
You can track vessels near Sendai South Breakwater Head 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.