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

Shimonokae Kō Lighthouse

Fl Green 3s🇯🇵Tosashimizu, JPOperational

Location & Light Range

About Shimonokae Kō Lighthouse

Also known as: Simonokae

Shimonokae Kō is an active lighthouse with a white, cylindrical concrete tower that stands 11 meters tall. Its focal height reaches 14 meters, and it emits a green light with a characteristic of one flash every three seconds. The structure features a round concrete tower with a flared top, connected to a small equipment shelter. Located near Tosashimizu in Kochi Prefecture, it is situated about 5 kilometers from the nearest port, Ashizuri. The lighthouse provides a geographic range of 11.6 nautical miles.

Why it matters: This lighthouse serves local fishing vessels and smaller commercial traffic, marking safe channels and navigational hazards along the Japanese coast.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
14m
Geographic Range
11.6NM

Location

City
Tosashimizu
Country
🇯🇵Japan
Region
Kochi Prefecture
Latitude
32.8617°
Longitude
132.9623°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

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

References & Identifiers

Nearest Port
Ashizuri(5.0 km)
Admiralty No.
M5601.3
NGA No.
10266
ARLHS No.
JPN-568
Live tracking · 50,000+ mariners

Find Shimonokae 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 Shimonokae Kō Lighthouse at night?+
Shimonokae 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 Shimonokae Kō Lighthouse guide vessels into?+
Shimonokae Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashizuri at 4.9 NM to the SSW. Other ports served include Tosashimizu (5.2 NM S), Kozukushi (12.3 NM W), Ozuku (12.5 NM W), Sukumowan (12.8 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shimonokae Kō Lighthouse still active and maintained?+
Yes, Shimonokae 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 Shimonokae Kō Lighthouse?+
Shimonokae 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 Shimonokae Kō Lighthouse?+
You can track vessels near Shimonokae 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.