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Semarang West Outer Breakwater Lighthouse

Fl Green 10s🇮🇩IDOperational

Location & Light Range

About Semarang West Outer Breakwater Lighthouse

Also known as: #Semarang West Outer Breakwater

This green, cylindrical fiberglass tower stands 12 meters tall and serves as a navigational aid at the end of Semarang's west outer breakwater. Flared at the top, the structure guides vessels with a green light that flashes once every 10 seconds. It is located 1.4 kilometers from the nearest port of Semarang. The light's operational status is confirmed, and its geographic range extends to 11.6 nautical miles. This post light replaced an earlier structure and is accessible only by boat.

Why it matters: The light is essential for vessels entering Semarang's port, marking the breakwater's extremity and shielding the harbor from monsoon-driven waves.

Light & Optic

Characteristic Signature
Fl Green 10s
Flash Type
Flashing
Light Color
Green
Interval
10s
Raw Code
Fl G 10s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Significant events: replaced

References & Identifiers

Nearest Port
Semarang(1.4 km)
Admiralty No.
Q1134
NGA No.
23558

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
green
Material
fiberglass

Structure: round green fiberglass tower, flared at the top

Location

Country
🇮🇩Indonesia
Region
Central Java
Sea Region
Semarang, Indonesia; at the end of the west breakwater, protecting the port from monsoon-driven waves
Latitude
-6.9177°
Longitude
110.4176°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Semarang West Outer Breakwater Lighthouse at night?+
Semarang West Outer Breakwater displays the characteristic Fl Green 10s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Semarang West Outer Breakwater Lighthouse guide vessels into?+
Semarang West Outer Breakwater Lighthouse assists vessels approaching 3 nearby ports. The closest is Semarang at 1.8 NM to the S. Other ports served include Jepara (23.9 NM NE), Pekalongan, Java (43 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Semarang West Outer Breakwater Lighthouse still active and maintained?+
Yes, Semarang West Outer Breakwater 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 Semarang West Outer Breakwater Lighthouse?+
You can track vessels near Semarang West Outer Breakwater 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.