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Oshima Lighthouse

Fl (2) W 9s🇯🇵Southwestern Honshū, JPOperational

Location & Light Range

About Oshima Lighthouse

This lighthouse stands on Southwestern Honshū as a 13-meter round fiberglass tower. Its exterior displays alternating white and red bands. The light produces two white flashes in a 9-second cycle. With a focal height of 39 meters, its geographic range covers 12 nautical miles.

Light & Optic

Characteristic Signature
Fl (2) W 9s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
9s
Raw Code
Fl.(2)W. period 9s
Focal Height
39m
Geographic Range
12NM

Location

City
Southwestern Honshū
Country
🇯🇵JP
Latitude
36.2513°
Longitude
136.1182°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
round
Tower Color
white and red
Material
fiberglass

Structure: White glass reinforced plastic(grp) fiberglass tower, red banded; 13

References & Identifiers

Admiralty No.
M7239.7
NGA No.
2712
Wikidata
Q11659211 →
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Frequently Asked Questions

How do mariners identify Oshima Lighthouse at night?+
Oshima displays the characteristic Fl (2) W 9s — 2 white flashes every 9 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 Oshima Lighthouse guide vessels into?+
Oshima Lighthouse assists vessels approaching 5 nearby ports. The closest is Fukui at 2.9 NM to the SSE. Other ports served include Takasu, Fukui (11.8 NM SSE), Ukui (11.8 NM SSE), Ataka (17.5 NM NE), Kanazawa (31.7 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Oshima Lighthouse still active and maintained?+
Yes, Oshima 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 Oshima Lighthouse?+
Oshima 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 Oshima Lighthouse?+
You can track vessels near Oshima 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.