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Udono Kō North Breakwater Lighthouse

Fl Green 3s🇯🇵Kiho, JPOperational

Location & Light Range

About Udono Kō North Breakwater Lighthouse

This cylindrical concrete tower stands 11 meters tall and is painted white. Its focal height reaches 16 meters above sea level, casting a green light with a characteristic of one flash every three seconds. The structure flares at the top and is connected to a small equipment shelter. It is situated at the northern end of a detached breakwater that shields the harbor of Udono. This port town lies on the north side of the Kumano River, which serves as the boundary between Mie and Wakayama Prefectures. Its geographic range extends to 12.2 nautical miles.

Why it matters: This lighthouse marks the north end of a detached breakwater, guiding vessels into the sheltered harbor of Udono and preventing collisions with the structure.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Kiho
Country
🇯🇵Japan
Region
Mie Prefecture
Sea Region
Located at the north end of a detached breakwater sheltering the harbor of Udono, a port town on the north side of the Kumano River, which forms the border between Mie and Wakayama Prefectures.
Latitude
33.7368°
Longitude
136.0243°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower, flared at the top, attached to a small equipment shelter

References & Identifiers

Nearest Port
Shingu(4.6 km)
Admiralty No.
M6007.5
NGA No.
6678
ARLHS No.
JPN-1871
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Frequently Asked Questions

How do mariners identify Udono Kō North Breakwater Lighthouse at night?+
Udono Kō North Breakwater displays the characteristic Fl Green 3s. 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Udono Kō North Breakwater Lighthouse guide vessels into?+
Udono Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Shingu at 4.4 NM to the SSW. Other ports served include Katsuura, Wakayama (7.7 NM SSW), Kinomoto (9.9 NM NNE), Nigishima (14.9 NM NE), Sue (19.5 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Udono Kō North Breakwater Lighthouse still active and maintained?+
Yes, Udono Kō North Breakwater 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 Udono Kō North Breakwater Lighthouse?+
Udono Kō North Breakwater 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 Udono Kō North Breakwater Lighthouse?+
You can track vessels near Udono Kō North Breakwater 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.