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Sesokoshima Lighthouse

Iso W 6s🇯🇵Nansei Shoto, JPInactive

Location & Light Range

About Sesokoshima Lighthouse

The lighthouse on Sesokoshima is situated in the Nansei Shoto region. Its focal height reaches 20 meters above sea level. The light emitted is white. This structure is no longer operational.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Focal Height
20m
Light Range
14NM (25.9 km)

Nearby Vessels

Flag
Type
Name
Dist.

Location

City
Nansei Shoto
Country
🇯🇵JP
Latitude
26.6479°
Longitude
127.8553°
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Frequently Asked Questions

How far offshore can Sesokoshima Lighthouse be seen?+
With a focal height of 20 meters and a nominal range of 14 nautical miles (approximately 25.9 km), Sesokoshima is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Sesokoshima Lighthouse at night?+
Sesokoshima displays the characteristic Iso W 6s — 1 white flash every 6 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 Sesokoshima Lighthouse guide vessels into?+
Sesokoshima Lighthouse assists vessels approaching 5 nearby ports. The closest is Motobu at 1.5 NM to the ESE. Other ports served include Sesoko (1.7 NM ESE), Nago (7.1 NM ESE), Unten (8.3 NM ENE), Kouri (9.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sesokoshima Lighthouse still active and maintained?+
Sesokoshima Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
How can I track vessels near Sesokoshima Lighthouse?+
You can track vessels near Sesokoshima 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.