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Watamaki Iso Lighthouse

Fl (2) W 5s🇯🇵Ehime (Western Shikoku), JPOperational

Location & Light Range

About Watamaki Iso Lighthouse

This black, cylindrical concrete tower was first lit in 1965. It stands 9 meters above the water. The structure is painted black and features a single red horizontal band. A black topmark is mounted on the tower. The beacon emits a single green flash every 3 seconds.

Light & Optic

Characteristic Signature
Fl (2) W 5s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
5s
Raw Code
Fl.G. period 3s
Focal Height
9m
Geographic Range
3NM

Construction & History

Year Built
1965

References & Identifiers

Admiralty No.
M5480.4
NGA No.
8588

Tower & Structure

Tower Shape
cylindrical
Tower Color
black
Material
concrete

Structure: ISOLATED DANGER (IALA B) Black beacon, black topmark, red banded,

Location

City
Ehime (Western Shikoku)
Country
🇯🇵JP
Latitude
34.1605°
Longitude
133.0292°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Watamaki Iso Lighthouse at night?+
Watamaki Iso displays the characteristic Fl (2) W 5s — 2 white flashes 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 Watamaki Iso Lighthouse guide vessels into?+
Watamaki Iso Lighthouse assists vessels approaching 5 nearby ports. The closest is Yoshiumi at 0.2 NM to the E. Other ports served include Hashihama (4.1 NM SW), Namikata (4.3 NM WSW), Hakatashima (4.9 NM ENE), Imabari (5.9 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Watamaki Iso Lighthouse still active and maintained?+
Yes, Watamaki Iso 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 Watamaki Iso Lighthouse?+
Watamaki Iso 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 Watamaki Iso Lighthouse?+
You can track vessels near Watamaki Iso 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.