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

Osaka Lighthouse

Fl R 3s🇯🇵Seto Naikai Eastern, JPOperational

The Osaka lighthouse emits a red light from a focal height of 19 meters. It is located in Seto Naikai Eastern. The lighthouse is currently operational.

Characteristic Signature
Fl R 3s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
3s
Focal Height
19m
Light Range
7NM (13.0 km)
City
Seto Naikai Eastern
Country
🇯🇵JP
Latitude
34.6388°
Longitude
135.3978°
Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Osaka 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
How far offshore can Osaka Lighthouse be seen?+
With a focal height of 19 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Osaka is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Osaka Lighthouse at night?+
Osaka displays the characteristic Fl R 3s — 1 red flash every 3 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. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Osaka Lighthouse guide vessels into?+
Osaka Lighthouse assists vessels approaching 5 nearby ports. The closest is Osaka, Tottori at 1.9 NM to the ENE. Other ports served include Amagasaki (3.7 NM N), Nishinomiya (3.7 NM N), AmagasakiNishinomiyaAshiya (4.8 NM NNE), Osaka (5.3 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Osaka Lighthouse still active and maintained?+
Yes, Osaka 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 Osaka Lighthouse?+
Osaka 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 Osaka Lighthouse?+
You can track vessels near Osaka 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.