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Uokono Shima Lighthouse

Fl W 5s🇯🇵Nagasaki Area, JPOperational

Location & Light Range

About Uokono Shima Lighthouse

This white, round concrete tower stands 39 meters tall. Its focal height reaches 69 meters above sea level. The light displays two white flashes every 6 seconds. It is operational and provides a geographic range of 5 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.(2)W. period 6s
Focal Height
69m
Geographic Range
5NM

Location

City
Nagasaki Area
Country
🇯🇵JP
Latitude
33.4240°
Longitude
129.7101°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
39m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 39

References & Identifiers

Admiralty No.
M5254.5
NGA No.
12092
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Frequently Asked Questions

How do mariners identify Uokono Shima Lighthouse at night?+
Uokono Shima 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 Uokono Shima Lighthouse guide vessels into?+
Uokono Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Fukushima, Nagasaki at 6.3 NM to the SE. Other ports served include Tabira (7.7 NM WSW), Emukae (8.4 NM SW), Hirado (8.4 NM WSW), Shikamachi (11 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uokono Shima Lighthouse still active and maintained?+
Yes, Uokono Shima 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 Uokono Shima Lighthouse?+
Uokono Shima 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 Uokono Shima Lighthouse?+
You can track vessels near Uokono Shima 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.