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Idi Lighthouse

Fl W 3s🇮🇩Northern Sumatra, IDOperational

Location & Light Range

About Idi Lighthouse

The Idi Lighthouse is situated in Northern Sumatra. Its focal height reaches 20 meters above sea level. The light emitted is white, providing a visual marker for mariners. This structure serves as a navigational aid for vessels operating in the region. Its operational status ensures continuous service.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Focal Height
20m

Nearby Vessels

Flag
Type
Name
Dist.

Location

City
Northern Sumatra
Country
🇮🇩ID
Latitude
5.2500°
Longitude
97.4833°
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Frequently Asked Questions

How do mariners identify Idi Lighthouse at night?+
Idi 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 Idi Lighthouse guide vessels into?+
Idi Lighthouse assists vessels approaching 3 nearby ports. The closest is Lhokseumawe at 21.5 NM to the WSW. Other ports served include Krueng Geukueh (21.9 NM W), Blang Lancang, St (22.9 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Idi Lighthouse still active and maintained?+
Yes, Idi 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 Idi Lighthouse?+
Idi 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 Idi Lighthouse?+
You can track vessels near Idi 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.