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Awa Shirahama Kō Lighthouse

Fl W 5s🇯🇵Eastern Honshū (Ibaraki and Chiba), JPOperational

Location & Light Range

About Awa Shirahama Kō Lighthouse

This lighthouse features a 7-meter white and green tower, with a focal height of 11 meters. Its light emits a single white flash every 3 seconds. The structure is synchronized with the light from NGA list number 4980.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 3s
Focal Height
11m
Light Range
7NM (13.0 km)
Geographic Range
3NM

Location

City
Eastern Honshū (Ibaraki and Chiba)
Country
🇯🇵JP
Latitude
34.9145°
Longitude
139.9355°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7m
Tower Color
white and green

Structure: Green and white tower; 7. Synchronized with 4976

References & Identifiers

Admiralty No.
M6458
NGA No.
4980
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Frequently Asked Questions

How far offshore can Awa Shirahama Kō Lighthouse be seen?+
With a focal height of 11 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Awa Shirahama 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 Awa Shirahama Kō Lighthouse at night?+
Awa Shirahama Kō displays the characteristic Fl W 5s — 1 white flash every 5 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 Awa Shirahama Kō Lighthouse guide vessels into?+
Awa Shirahama Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Tateyama at 6.9 NM to the NW. Other ports served include Wada (8.2 NM NNE), Muya (8.4 NM NW), Abuto (12.7 NM NE), Kazusaminato (18.5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Awa Shirahama Kō Lighthouse still active and maintained?+
Yes, Awa Shirahama 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 Awa Shirahama Kō Lighthouse?+
Awa Shirahama 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 Awa Shirahama Kō Lighthouse?+
You can track vessels near Awa Shirahama 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.