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Shirogane Saki Lighthouse

Fl (3) White 13s🇯🇵Ishinomaki, JPOperational

Location & Light Range

About Shirogane Saki Lighthouse

This white, cylindrical concrete tower stands 10 meters tall and was first lit in 1957. It is situated on a promontory approximately 4 kilometers south of Oshu Saki, as part of the same cape structure. The lighthouse emits a white flash every 13 seconds from a focal height of 38 meters, with a geographic range of 16.7 nautical miles. The current structure is a simple, round concrete tower, though earlier iterations featured a more complex design. Visitors can access the site, but the tower itself is closed to the public.

Why it matters: The lighthouse helps vessels safely navigate around the significant promontory south of Oshu Saki.

Light & Optic

Characteristic Signature
Fl (3) White 13s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
13s
Raw Code
Fl W 13s
Focal Height
38m
Geographic Range
16.7NM

Construction & History

First Lit
1957

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower

Location

City
Ishinomaki
Country
🇯🇵Japan
Region
Miyagi Prefecture
Sea Region
promontory about 4 km south of Oshu Saki, part of the same cape structure
Latitude
38.4887°
Longitude
141.5353°

References & Identifiers

Nearest Port
Tanohama(2.8 km)
Admiralty No.
M6554
NGA No.
4304
ARLHS No.
JPN-582
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Frequently Asked Questions

How do mariners identify Shirogane Saki Lighthouse at night?+
Shirogane Saki displays the characteristic Fl (3) White 13s — 3 white flashes every 13 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Shirogane Saki Lighthouse guide vessels into?+
Shirogane Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Funakoshi at 3 NM to the NNW. Other ports served include Akehama (4.6 NM WSW), Hamaguri (4.6 NM WSW), Nonohama (4.6 NM WSW), Ogatsu (4.6 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shirogane Saki Lighthouse still active and maintained?+
Yes, Shirogane 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 Shirogane Saki Lighthouse?+
Shirogane 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 Shirogane Saki Lighthouse?+
You can track vessels near Shirogane 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.