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Obama Kō North Breakwater Lighthouse

Fl Green 3s🇯🇵Obama, JPOperational

Location & Light Range

About Obama Kō North Breakwater Lighthouse

Located at the western end of a detached breakwater marking the northern entry to Obama harbor, this light features a round cylindrical concrete tower, 10 meters in height, with a gallery. Its green light, with a focal height of 11 meters, flashes once every three seconds (Fl G 3s) and can be seen for 10.7 nautical miles. The site is accessible, but the tower is not open for visits. The structure is situated 0.2 kilometers from Obama port.

Why it matters: The light serves as a navigation aid, marking the western edge of the north breakwater and assisting vessels entering Obama harbor.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Obama
Country
🇯🇵Japan
Region
Fukui Prefecture
Sea Region
Located at the west end of a detached breakwater at the north end of Obama harbor.
Latitude
35.5038°
Longitude
135.7387°

References & Identifiers

Nearest Port
Obama(0.2 km)
Admiralty No.
M7252.7
ARLHS No.
JPN-1200

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with gallery

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Obama Kō North Breakwater Lighthouse at night?+
Obama 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 Obama Kō North Breakwater Lighthouse guide vessels into?+
Obama Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Obama, Fukui at 1.7 NM to the W. Other ports served include Tsuchiura (11.7 NM W), Uchiura, Fukui (12.4 NM W), Shiraki (18.2 NM NE), Maizuru (18.6 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Obama Kō North Breakwater Lighthouse still active and maintained?+
Yes, Obama 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 Obama Kō North Breakwater Lighthouse?+
Obama 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 Obama Kō North Breakwater Lighthouse?+
You can track vessels near Obama 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.