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

Aganokawaguchi Lighthouse

Iso W 6s🇯🇵Honshu-Northwest Coast, JPOperational

Location & Light Range

About Aganokawaguchi Lighthouse

This lighthouse, completed and first illuminated in 1934, stands 16 meters high. It projects an isophase white light, with a full cycle occurring every 6 seconds. Its focal height is also 16 meters. The geographic range of its illumination extends to 12 nautical miles. The lighthouse is located on the Honshu-Northwest Coast of Japan.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Iso.W. period 6s
Focal Height
16m
Light Range
12NM (22.2 km)
Geographic Range
12NM

Construction & History

Year Built
1934

References & Identifiers

Admiralty No.
M7109
NGA No.
3380
Wikidata
Q125931678 →

Tower & Structure

Tower Height
16m

Location

City
Honshu-Northwest Coast
Country
🇯🇵JP
Latitude
37.9593°
Longitude
139.1357°

Nearby Vessels

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

Find Aganokawaguchi Lighthouse on the live nautical map

Plan voyages near JP, 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 far offshore can Aganokawaguchi Lighthouse be seen?+
With a focal height of 16 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Aganokawaguchi is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Aganokawaguchi Lighthouse at night?+
Aganokawaguchi displays the characteristic Iso W 6s — 1 white flash every 6 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 Aganokawaguchi Lighthouse guide vessels into?+
Aganokawaguchi Lighthouse assists vessels approaching 5 nearby ports. The closest is Niigata at 2 NM to the ENE. Other ports served include Ii (5.8 NM NE), Niigatahigashi (5.8 NM NE), Iwafune (19.5 NM NE), Tsubame (20.9 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Aganokawaguchi Lighthouse still active and maintained?+
Yes, Aganokawaguchi 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 Aganokawaguchi Lighthouse?+
Aganokawaguchi 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 Aganokawaguchi Lighthouse?+
You can track vessels near Aganokawaguchi 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.