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Funagata-hirashima Lighthouse

Fl W 4s🇯🇵Honshu-South Coast-Tokyo Wan, JPOperational

Location & Light Range

About Funagata-hirashima Lighthouse

The Funagata-hirashima lighthouse is a white, round concrete tower standing 31 meters tall. It emits a single white flash every 4 seconds. The focal height of its light is 11 meters above sea level. This structure aids navigation along the Honshu-South Coast-Tokyo Wan.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl.W. period 4s
Focal Height
11m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Honshu-South Coast-Tokyo Wan
Country
🇯🇵JP
Latitude
35.0248°
Longitude
139.8383°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
31m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 31. JAPAN-NANPO SHOTO 57

References & Identifiers

Admiralty No.
M6447
NGA No.
5028
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Frequently Asked Questions

How far offshore can Funagata-hirashima Lighthouse be seen?+
With a focal height of 11 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Funagata-hirashima 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 Funagata-hirashima Lighthouse at night?+
Funagata-hirashima displays the characteristic Fl W 4s — 1 white flash every 4 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 Funagata-hirashima Lighthouse guide vessels into?+
Funagata-hirashima Lighthouse assists vessels approaching 5 nearby ports. The closest is Tateyama at 1.3 NM to the SSE. Other ports served include Muya (2.4 NM SW), Wada (8.7 NM E), Maguchi (10.6 NM NW), Kazusaminato (11.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Funagata-hirashima Lighthouse still active and maintained?+
Yes, Funagata-hirashima 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 Funagata-hirashima Lighthouse?+
Funagata-hirashima 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 Funagata-hirashima Lighthouse?+
You can track vessels near Funagata-hirashima 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.