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Yokosuka Yoshikura West Breakwater Lighthouse

Fl (2) Red 6s🇯🇵Yokosuka, JPOperational

Location & Light Range

About Yokosuka Yoshikura West Breakwater Lighthouse

This red, cylindrical concrete post stands 11 meters tall, with its light positioned 13 meters above sea level. It is attached to a 1-story concrete equipment shelter. The light emits a single red flash every six seconds, visible for 11.3 nautical miles. The structure is situated at the end of a breakwater on the north side of Yokosuka's commercial harbor, east of the naval base.

Why it matters: This light marks the western edge of the main shipping channel, warning vessels of the breakwater's end and aiding safe entry into Yokosuka's busy port.

Light & Optic

Characteristic Signature
Fl (2) Red 6s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl R 6s
Focal Height
13m
Geographic Range
11.3NM

Location

City
Yokosuka
Country
🇯🇵Japan
Region
Kanagawa Prefecture
Sea Region
Located at the end of a breakwater on the north side of Yokosuka's commercial harbor, east of the naval base.
Latitude
35.2886°
Longitude
139.6850°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: An 11m red concrete post attached to a square 1-story concrete equipment shelter.

References & Identifiers

Nearest Port
Yokosuka(1.1 km)
Admiralty No.
M6377
NGA No.
5140
ARLHS No.
JPN-1422
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Frequently Asked Questions

How do mariners identify Yokosuka Yoshikura West Breakwater Lighthouse at night?+
Yokosuka Yoshikura West Breakwater displays the characteristic Fl (2) Red 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.
Which ports and harbors does Yokosuka Yoshikura West Breakwater Lighthouse guide vessels into?+
Yokosuka Yoshikura West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Yokosuka at 0.2 NM to the NE. Other ports served include Hayama (1 NM WSW), Oppama (3.4 NM WNW), Uraga (3.5 NM SE), Hamakanaya (3.7 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yokosuka Yoshikura West Breakwater Lighthouse still active and maintained?+
Yes, Yokosuka Yoshikura West 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.
What shipping routes pass near Yokosuka Yoshikura West Breakwater Lighthouse?+
Yokosuka Yoshikura West Breakwater 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 Yokosuka Yoshikura West Breakwater Lighthouse?+
You can track vessels near Yokosuka Yoshikura West 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.