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Kōchi Entrance Lighthouse

Oc Green 6s🇯🇵Kōchi, JPOperational

Location & Light Range

About Kōchi Entrance Lighthouse

This square skeletal tower, standing 11 meters tall and painted white, is situated at the end of the western breakwater leading into Kōchi harbor. With a focal height of 16 meters, it emits an occulting green light that cycles every six seconds. Constructed from metal, the tower is a modern structure near the port city of Kōchi. Its geographic range extends to 12.2 nautical miles, guiding vessels approaching the harbor entrance. An adjacent equipment building may suggest a history of maritime signaling at this precise spot.

Why it matters: This lighthouse is essential for the safe navigation of all vessels entering and departing Kōchi harbor, precisely marking the western edge of the entrance channel.

Light & Optic

Characteristic Signature
Oc Green 6s
Flash Type
Occulting
Light Color
Green
Interval
6s
Raw Code
Oc G 6s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Kōchi
Country
🇯🇵Japan
Region
Kochi Prefecture
Sea Region
Entrance to Kōchi harbor, at the end of the breakwater on the west side.
Latitude
33.5010°
Longitude
133.5831°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
square
Tower Color
white
Material
metal

Structure: square skeletal tower, painted white

References & Identifiers

Nearest Port
Kochi(0.3 km)
Admiralty No.
M5595
NGA No.
10156
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Frequently Asked Questions

How do mariners identify Kōchi Entrance Lighthouse at night?+
Kōchi Entrance displays the characteristic Oc Green 6s. 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 Kōchi Entrance Lighthouse guide vessels into?+
Kōchi Entrance Lighthouse assists vessels approaching 5 nearby ports. The closest is Kochi at 2.4 NM to the NNW. Other ports served include Usa/Tosa (7.7 NM WSW), Susaki (15.9 NM WSW), Kaminokae (21.5 NM SW), Nahari (22.3 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kōchi Entrance Lighthouse still active and maintained?+
Yes, Kōchi Entrance 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 Kōchi Entrance Lighthouse?+
Kōchi Entrance 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 Kōchi Entrance Lighthouse?+
You can track vessels near Kōchi Entrance 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.