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Dumai Lighthouse

Fl White 4s🇮🇩IDOperational

Location & Light Range

About Dumai Lighthouse

This metal lighthouse stands 25 meters tall, with its light positioned at a focal height of 28 meters. The structure is a white mast featuring three galleries. It emits a single white flash every 4 seconds, visible for a geographic range of approximately 15 nautical miles. The lighthouse is situated near the port of Dumai in Sumatra, about 1.8 kilometers away. It has been an active aid to navigation for many years.

Why it matters: The lighthouse helps guide vessels navigating the busy shipping lanes around Dumai, a significant port on Sumatra.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
28m
Geographic Range
14.9NM

Location

Country
🇮🇩ID
Latitude
1.6891°
Longitude
101.4285°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
25m
Tower Color
white
Material
metal

Structure: white robust mast with three galleries

References & Identifiers

Nearest Port
Dumai, Sumatra(1.8 km)
Admiralty No.
F1400.05
NGA No.
22511.1
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Frequently Asked Questions

How do mariners identify Dumai Lighthouse at night?+
Dumai displays the characteristic Fl White 4s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Dumai Lighthouse guide vessels into?+
Dumai Lighthouse assists vessels approaching 2 nearby ports. The closest is Dumai, Sumatra at 0.8 NM to the E. Other ports served include Sungai Pakning, Sumatra (48.4 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dumai Lighthouse still active and maintained?+
Yes, Dumai 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 Dumai Lighthouse?+
Dumai Lighthouse is located within the Strait of Malacca — the primary shipping route between the Indian and Pacific Oceans, carrying over 25% of global traded goods. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Dumai Lighthouse?+
You can track vessels near Dumai 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.