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Pulau Jemur Lighthouse

Fl White 5s🇮🇩IDOperational

Location & Light Range

About Pulau Jemur Lighthouse

A white, skeletal metal tower stands 24 meters tall on Pulau Jemur. The structure features a lantern and gallery, with the tower itself painted white. Its focal height reaches 46 meters above sea level, casting a white light that flashes once every 5 seconds. This lighthouse is situated approximately 50 kilometers from Tanjungbalai and 75 kilometers from the Malaysian coast. It is located within the Arwah island group in the Strait of Malacca.

Why it matters: This lighthouse warns vessels of the Arwah island group, a potential hazard in the busy Strait of Malacca. Its presence confirms Indonesian sovereignty over these islands, a matter settled by a 1969 maritime border agreement.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
46m
Geographic Range
18.1NM

Location

Country
🇮🇩ID
Latitude
2.8803°
Longitude
100.5645°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
24m
Tower Shape
skeletal
Tower Color
white
Material
metal

Structure: skeletal tower with lantern and gallery, painted white

References & Identifiers

Nearest Port
Port klang(47.4 km)
Admiralty No.
F1386
NGA No.
22484
ARLHS No.
IDO-201
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Frequently Asked Questions

How do mariners identify Pulau Jemur Lighthouse at night?+
Pulau Jemur displays the characteristic Fl White 5s. 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 Pulau Jemur Lighthouse guide vessels into?+
Pulau Jemur Lighthouse assists vessels approaching 4 nearby ports. The closest is Kuala Selangor at 39.8 NM to the NE. Other ports served include Pulau Indah (45.2 NM E), Port Klang (Pelabuhan Klang) (48 NM E), Port Klang (Ferry Port) (48.8 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Pulau Jemur Lighthouse still active and maintained?+
Yes, Pulau Jemur 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 Pulau Jemur Lighthouse?+
Pulau Jemur 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 Pulau Jemur Lighthouse?+
You can track vessels near Pulau Jemur 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.