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Ryōri Saki Lighthouse

Fl W 15s🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Ryōri Saki Lighthouse

The Ryōri Saki lighthouse stands on northeastern Honshū, Japan. Its white tower measures 62 meters in height. The light emits a single white flash every 15 seconds. Visible between the bearings of 179° and 062°, this light has a geographic range of 12 nautical miles. The focal plane of the light is situated 112 meters above sea level.

Light & Optic

Characteristic Signature
Fl W 15s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
15s
Raw Code
Fl.W. period 15s
Focal Height
112m
Light Range
22NM (40.7 km)
Geographic Range
12NM

Location

City
Northeastern Honshū
Country
🇯🇵JP
Latitude
39.0296°
Longitude
141.8503°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
62m
Tower Color
white

Structure: White tower; 62. Visible 179°-062°

References & Identifiers

Admiralty No.
M6586
NGA No.
4164
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Frequently Asked Questions

How far offshore can Ryōri Saki Lighthouse be seen?+
With a focal height of 112 meters and a nominal range of 22 nautical miles (approximately 40.7 km), Ryōri Saki is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. Lights of this range are typically used as landfall lights by vessels approaching from the open sea.
How do mariners identify Ryōri Saki Lighthouse at night?+
Ryōri Saki displays the characteristic Fl W 15s — 1 white flash every 15 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 Ryōri Saki Lighthouse guide vessels into?+
Ryōri Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Sakihama at 4.4 NM to the N. Other ports served include Nojiri (5.6 NM WNW), Hirota, Iwate (9.5 NM WSW), Kamaishi (14.4 NM N), Otsuchi (14.4 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ryōri Saki Lighthouse still active and maintained?+
Yes, Ryōri Saki 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 Ryōri Saki Lighthouse?+
Ryōri Saki 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 Ryōri Saki Lighthouse?+
You can track vessels near Ryōri Saki 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.