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Aka Saki Lighthouse

Fl White 3s🇯🇵Ishinomaki, JPOperational

Location & Light Range

About Aka Saki Lighthouse

Aka Saki Lighthouse, built in 1957, is a cylindrical concrete tower standing 10 meters tall. It is situated on the western side of the bay entrance leading to Ogatsu. The structure rises from a square, single-story equipment room and features a gallery. From a focal height of 34 meters, it emits a white flash every 3 seconds, visible for 16 nautical miles. The lighthouse is located near the port of Funakoshi, 2.1 kilometers away.

Why it matters: The lighthouse marks the entrance to the bay serving the town of Ogatsu, providing guidance for local fishing boats and other vessels navigating these coastal waters.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
34m
Geographic Range
16NM

Construction & History

Year Built
1957

References & Identifiers

Nearest Port
Funakoshi(2.1 km)
Admiralty No.
M6555
NGA No.
4316
ARLHS No.
JPN-009

Tower & Structure

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

Structure: round concrete tower with gallery, rising from a square 1-story equipment room

Location

City
Ishinomaki
Country
🇯🇵Japan
Region
Miyagi Prefecture
Sea Region
entrance to the bay leading to the town of Ogatsu
Latitude
38.5001°
Longitude
141.4971°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Aka Saki Lighthouse at night?+
Aka Saki displays the characteristic Fl White 3s. 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 Aka Saki Lighthouse guide vessels into?+
Aka Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Funakoshi at 2.1 NM to the NNE. Other ports served include Akehama (3.7 NM SW), Hamaguri (3.7 NM SW), Nonohama (3.7 NM SW), Ogatsu (3.7 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Aka Saki Lighthouse still active and maintained?+
Yes, Aka 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 Aka Saki Lighthouse?+
Aka 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 Aka Saki Lighthouse?+
You can track vessels near Aka 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.