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Sikono Lighthouse

Iso W 6s🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Sikono Lighthouse

The Sikono Lighthouse is a white, conical masonry tower that stands 32 meters high. Its focal height reaches 58 meters above sea level. The lighthouse emits a single white flash every 3 seconds. It has a geographic range of 5 nautical miles. The structure is located on Northeastern Honshū.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Fl.W. period 3s
Focal Height
58m
Geographic Range
5NM

Location

City
Northeastern Honshū
Country
🇯🇵JP
Latitude
38.4386°
Longitude
141.5281°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
32m
Tower Shape
conical
Tower Color
white
Material
masonry

Structure: White tower; 32

References & Identifiers

Admiralty No.
M6549
NGA No.
4320
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Frequently Asked Questions

How do mariners identify Sikono Lighthouse at night?+
Sikono displays the characteristic Iso W 6s — 1 white flash 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.
Which ports and harbors does Sikono Lighthouse guide vessels into?+
Sikono Lighthouse assists vessels approaching 5 nearby ports. The closest is Onagawa at 3.4 NM to the W. Other ports served include Akehama (3.7 NM W), Hamaguri (3.7 NM W), Nonohama (3.7 NM W), Ogatsu (3.7 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sikono Lighthouse still active and maintained?+
Yes, Sikono 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 Sikono Lighthouse?+
Sikono 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 Sikono Lighthouse?+
You can track vessels near Sikono 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.