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Onen Saki Lighthouse

Fl W 5s🇯🇵Ōsumi and Amami Islands, JPOperational

Location & Light Range

About Onen Saki Lighthouse

Onen Saki Lighthouse was built in 1961 as a red, cylindrical concrete tower. It stands 35 meters above sea level, emitting a single red flash every 2 seconds. The structure, situated on piles, is described as a framework tower with a topmark. This light is located in the Ōsumi and Amami Islands region. Its geographic range is 2 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.R. period 2s
Focal Height
35m
Geographic Range
2NM

Construction & History

Year Built
1961

References & Identifiers

Admiralty No.
M4780.5
NGA No.
13176
ARLHS No.
JPN-2582

Tower & Structure

Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: STARBOARD (IALA B) Red framework tower, topmark, on piles

Location

City
Ōsumi and Amami Islands
Country
🇯🇵JP
Latitude
28.2040°
Longitude
129.2471°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Onen Saki Lighthouse at night?+
Onen Saki displays the characteristic Fl W 5s — 1 white flash every 5 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 Onen Saki Lighthouse guide vessels into?+
Onen Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Shinokawa at 2.5 NM to the ENE. Other ports served include Nagara (3 NM N), Kudadon (3.1 NM WNW), Koniya (4.8 NM SE), Yuwan (5 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Onen Saki Lighthouse still active and maintained?+
Yes, Onen Saki 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.
How can I track vessels near Onen Saki Lighthouse?+
You can track vessels near Onen Saki 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.