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Shimizu Lighthouse

Fl (2) W 20s🇯🇵Honshu-South Coast, JPOperational

Location & Light Range

About Shimizu Lighthouse

This white octagonal concrete lighthouse stands 59 meters high. The structure is a concrete tower with an octagonal base. Its light produces two white flashes every 20 seconds. The focal height of the light is 21 meters above sea level. This characteristic provides a geographic range of 14 nautical miles for mariners.

Why it matters: The lighthouse is recognized as a JSCE Civil Engineering Heritage Site.

Light & Optic

Characteristic Signature
Fl (2) W 20s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
20s
Raw Code
Fl.(2)W. period 20s
Focal Height
21m
Light Range
14NM (25.9 km)
Geographic Range
14NM

Construction & History

Heritage Status
JSCE Civil Engineering Heritage Site

References & Identifiers

Admiralty No.
M6248
NGA No.
5708
Wikidata
Q11561057 →

Tower & Structure

Tower Height
59m
Tower Shape
octagonal
Tower Color
white
Material
concrete

Structure: White octagonal concrete tower; 59

Location

City
Honshu-South Coast
Country
🇯🇵JP
Latitude
35.0106°
Longitude
138.5305°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Shimizu Lighthouse be seen?+
With a focal height of 21 meters and a nominal range of 14 nautical miles (approximately 25.9 km), Shimizu is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Shimizu Lighthouse at night?+
Shimizu displays the characteristic Fl (2) W 20s — 2 white flashes every 20 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 Shimizu Lighthouse guide vessels into?+
Shimizu Lighthouse assists vessels approaching 5 nearby ports. The closest is Himi at 1.5 NM to the WNW. Other ports served include Shimizu (1.5 NM WNW), Agonoura (11.1 NM NE), Gonoura (11.1 NM NE), Tagonoura (11.3 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shimizu Lighthouse still active and maintained?+
Yes, Shimizu 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 Shimizu Lighthouse?+
Shimizu 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 Shimizu Lighthouse?+
You can track vessels near Shimizu 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.