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Kasumi Kō Lighthouse

Iso White 6s🇯🇵Kami, JPOperational

Location & Light Range

About Kasumi Kō Lighthouse

The Kasumi Kō lighthouse, constructed in 1949, is located on a steep bluff overlooking the eastern entrance to the harbor in Kami, Hyogo Prefecture. It consists of a 6.5-meter white concrete post and a connected 1-story concrete equipment building. The light displays an isophase white flash every 6 seconds and has a geographic range of 23.6 nautical miles. The site is accessible to visitors, but the tower is not open for entry. Shibayama port is situated 1.8 kilometers from the lighthouse.

Why it matters: This light marks the harbor entrance for vessels navigating to Kasumi.

Light & Optic

Characteristic Signature
Iso White 6s
Flash Type
Isophase
Light Color
White
Interval
6s
Raw Code
Iso W 6s
Focal Height
88m
Light Range
3NM (5.6 km)
Geographic Range
23.6NM

Construction & History

Year Built
1949

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6.5m
Tower Color
white
Material
concrete

Structure: A 6.5m concrete post, painted white, with an adjoining 1-story concrete equipment shed.

Location

City
Kami
Country
🇯🇵Japan
Region
Hyogo Prefecture
Sea Region
steep bluff on the east side of the entrance to Kasumi harbor
Latitude
35.6489°
Longitude
134.6284°

References & Identifiers

Nearest Port
Shibayama(1.8 km)
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Frequently Asked Questions

How far offshore can Kasumi Kō Lighthouse be seen?+
With a focal height of 88 meters and a nominal range of 3 nautical miles (approximately 5.6 km), Kasumi Kō 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 Kasumi Kō Lighthouse at night?+
Kasumi Kō displays the characteristic Iso White 6s. 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 Kasumi Kō Lighthouse guide vessels into?+
Kasumi Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Shibayama at 1.7 NM to the E. Other ports served include Yasugi (3.8 NM E), Hamasaka (8.9 NM W), Tsui (10.1 NM E), Tsuiyama (10.1 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kasumi Kō Lighthouse still active and maintained?+
Yes, Kasumi Kō 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 Kasumi Kō Lighthouse?+
Kasumi Kō 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 Kasumi Kō Lighthouse?+
You can track vessels near Kasumi Kō 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.