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Shioga Lighthouse

Iso W 8s🇯🇵Northern Honshū, JPOperational

Location & Light Range

About Shioga Lighthouse

The Shioga Lighthouse is situated in Northern Honshū. Its focal plane stands 18 meters above the water. The light emits a single white flash every 3 seconds. This characteristic provides a geographic range of 12 nautical miles.

Light & Optic

Characteristic Signature
Iso W 8s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
8s
Raw Code
Fl.W. period 3s
Focal Height
18m
Geographic Range
12NM

References & Identifiers

Admiralty No.
M7059.5
NGA No.
3592

Location

City
Northern Honshū
Country
🇯🇵JP
Latitude
39.8580°
Longitude
139.7548°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Shioga Lighthouse at night?+
Shioga displays the characteristic Iso W 8s — 1 white flash every 8 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 Shioga Lighthouse guide vessels into?+
Shioga Lighthouse assists vessels approaching 5 nearby ports. The closest is Funagawa at 4.6 NM to the ENE. Other ports served include Akitafunagawa (4.8 NM ENE), Funakawa (5.2 NM E), Akita (15.1 NM ESE), Noshiro (23.7 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shioga Lighthouse still active and maintained?+
Yes, Shioga 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 Shioga Lighthouse?+
Shioga 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 Shioga Lighthouse?+
You can track vessels near Shioga 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.