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Nishidō Lighthouse

Fl W 4s🇯🇵Kōchi (Southern Shikoku), JPOperational

Location & Light Range

About Nishidō Lighthouse

This lighthouse stands on the southern coast of Shikoku island. Its white column is distinguished by green bands. The structure has a height of 16 meters, with its light positioned 40 meters above sea level. It emits a single white flash every 4 seconds. The geographic range of its light is 7 nautical miles.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl.W. period 4s
Focal Height
40m
Geographic Range
7NM

Location

City
Kōchi (Southern Shikoku)
Country
🇯🇵JP
Latitude
32.9310°
Longitude
132.9995°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
16m
Tower Color
white and green

Structure: White column, green banded; 16

References & Identifiers

Admiralty No.
M5600
NGA No.
10260
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Frequently Asked Questions

How do mariners identify Nishidō Lighthouse at night?+
Nishidō displays the characteristic Fl W 4s — 1 white flash every 4 seconds. 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.
Which ports and harbors does Nishidō Lighthouse guide vessels into?+
Nishidō Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashizuri at 9.5 NM to the SSW. Other ports served include Tosashimizu (9.6 NM SSW), Saga (10.3 NM NNE), Sukumowan (14.3 NM W), Kozukushi (14.4 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nishidō Lighthouse still active and maintained?+
Yes, Nishidō 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 Nishidō Lighthouse?+
Nishidō 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 Nishidō Lighthouse?+
You can track vessels near Nishidō 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.