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Jepara Lighthouse

Fl W 3s🇮🇩Java and Madura, IDOperational

Location & Light Range

About Jepara Lighthouse

The Jepara lighthouse was established in 1908. Its light produces a white flash every 5 seconds. The structure stands 17 meters above sea level. It is a square tower built of concrete. The lighthouse has a geographic range of 15 nautical miles.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Raw Code
Fl.W. period 5s
Focal Height
17m
Geographic Range
15NM

Construction & History

Year Built
1908

References & Identifiers

Admiralty No.
Q1139
NGA No.
23580
ARLHS No.
IDO-356

Tower & Structure

Tower Shape
square
Material
concrete

Location

City
Java and Madura
Country
🇮🇩ID
Latitude
-6.5837°
Longitude
110.6563°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Jepara Lighthouse at night?+
Jepara displays the characteristic Fl W 3s — 1 white flash every 3 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 Jepara Lighthouse guide vessels into?+
Jepara Lighthouse assists vessels approaching 2 nearby ports. The closest is Jepara at 0.7 NM to the SW. Other ports served include Semarang (26.1 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jepara Lighthouse still active and maintained?+
Yes, Jepara 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.
How can I track vessels near Jepara Lighthouse?+
You can track vessels near Jepara 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.