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Ugui Lighthouse

Fl W 5s🇯🇵Wakayama Prefecture, JPOperational

Location & Light Range

About Ugui Lighthouse

Also known as: Komagasaki lighthouse

This lighthouse features a red pipe swing pole tower standing 26 meters high. The light source reaches a focal height of 53 meters above sea level. It emits an isophase white light on a 6-second cycle. This navigational aid has a geographic range of 4 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Iso.R. period 6s
Focal Height
53m
Geographic Range
4NM

Location

City
Wakayama Prefecture
Country
🇯🇵JP
Latitude
33.6509°
Longitude
135.9795°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
26m
Tower Color
red

Structure: Pipe swing pole; 26

References & Identifiers

Admiralty No.
M6007.1
NGA No.
6692
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Frequently Asked Questions

How do mariners identify Ugui Lighthouse at night?+
Ugui 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 Ugui Lighthouse guide vessels into?+
Ugui Lighthouse assists vessels approaching 5 nearby ports. The closest is Shingu at 1.3 NM to the N. Other ports served include Katsuura, Wakayama (2.2 NM SW), Sue (13.9 NM SSW), KUSHIMOTO (14.5 NM SW), Fukuro (14.7 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ugui Lighthouse still active and maintained?+
Yes, Ugui 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 Ugui Lighthouse?+
Ugui 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 Ugui Lighthouse?+
You can track vessels near Ugui 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.