Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Sakihama Kō Lighthouse

Fl Green 3s🇯🇵Muroto, JPOperational

Location & Light Range

About Sakihama Kō Lighthouse

This concrete lighthouse, painted white, stands 10 meters tall with its light positioned 15 meters above sea level. The cylindrical tower features a flared top and is attached to a small, single-story equipment shelter. Operational since its activation, it emits a green flash every 3 seconds, visible for nearly 12 nautical miles. The site is accessible to the public, though the tower itself remains closed. Its location marks the northern end of a detached breakwater at the entrance to Sakihama harbor.

Why it matters: The lighthouse precisely marks the harbor entrance, preventing vessels from colliding with the detached breakwater and ensuring safe passage for maritime traffic.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Muroto
Country
🇯🇵Japan
Region
Kochi Prefecture
Sea Region
Sakihama harbor, marking the entrance at the north end of a detached breakwater.
Latitude
33.3938°
Longitude
134.2147°

References & Identifiers

Nearest Port
Murotsu, Kochi(7.4 km)
ARLHS No.
JPN-532

Tower & Structure

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

Structure: round concrete tower with a flared top, attached to a small 1-story concrete equipment shelter

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Sakihama Kō Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Sakihama Kō Lighthouse at night?+
Sakihama Kō 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 Sakihama Kō Lighthouse guide vessels into?+
Sakihama Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Murotsu, Kochi at 7.5 NM to the SSW. Other ports served include Kannoura (10 NM NNE), Nahari (10 NM W), Asakawa (16.2 NM NNE), Hiwasa (26.2 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sakihama Kō Lighthouse still active and maintained?+
Yes, Sakihama Kō 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 Sakihama Kō Lighthouse?+
Sakihama Kō 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 Sakihama Kō Lighthouse?+
You can track vessels near Sakihama Kō 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.