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Sada Misaki Lighthouse

Fl (3) White 20s🇯🇵Ikata, JPOperational

Location & Light Range

About Sada Misaki Lighthouse

Sada Misaki Lighthouse was established in 1918 as a white cylindrical concrete tower, 18 meters tall. The structure consists of an octagonal base leading to a cylindrical tower with a lantern and gallery, all rising from a one-story keeper's house. It is situated at the extreme tip of the Sadamisaki peninsula, which extends into the Inland Sea, separating Iyo Bay to the north from Uwa Bay to the south. This unique location means the lighthouse is surrounded by water. Its light emits one white flash every 20 seconds, visible for 18.5 nautical miles. The site is open to the public, but the tower itself is closed.

Why it matters: This lighthouse guides vessels navigating the waters between Iyo Bay and Uwa Bay and casts a specific light onto the Ogon Bae reef. It is recognized as one of Japan's Famous Fifty Lighthouses.

Light & Optic

Characteristic Signature
Fl (3) White 20s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
20s
Raw Code
Fl W 20s
Focal Height
49m
Geographic Range
18.5NM

Construction & History

Year Built
1918
Heritage Status
Japan's Famous Fifty Lighthouses

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: octagonal cylindrical concrete tower with lantern and gallery, rising from a 1-story concrete keeper's house

Location

City
Ikata
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
Located at the tip of the Sadamisaki peninsula, which projects into the Inland Sea, separating Iyo Bay on the north from Uwa Bay on the south. The lighthouse is surrounded by water in all directions.
Latitude
33.3431°
Longitude
132.0149°

References & Identifiers

Nearest Port
Misaki(5.8 km)
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Frequently Asked Questions

How do mariners identify Sada Misaki Lighthouse at night?+
Sada Misaki displays the characteristic Fl (3) White 20s — 3 white flashes every 20 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 Sada Misaki Lighthouse guide vessels into?+
Sada Misaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Misaki, Ehime at 5.5 NM to the ENE. Other ports served include Saganoseki (9.3 NM SW), MITSUKE (13.6 NM ENE), Usuki (16.5 NM SW), Musashi (16.8 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sada Misaki Lighthouse still active and maintained?+
Yes, Sada Misaki 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 Sada Misaki Lighthouse?+
Sada Misaki 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 Sada Misaki Lighthouse?+
You can track vessels near Sada Misaki 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.