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Ko Similan Lighthouse

Fl White 20s🇹🇭THOperational

Location & Light Range

About Ko Similan Lighthouse

This white, skeletal metal tower stands 30 meters tall and is located on an island approximately 80 kilometers west of the Phang Nga coast. Its light is positioned at a focal height of 169 meters. The light emits a single white flash every 20 seconds, providing a geographic range of 31.2 nautical miles. The lighthouse is managed by the Similan Islands National Park, emphasizing its location within a protected natural area. Reaching this remote station requires a boat trip.

Why it matters: This lighthouse warns vessels navigating the Andaman Sea, especially those approaching the Similan Islands, a destination known for diving and tourism.

Light & Optic

Characteristic Signature
Fl White 20s
Flash Type
Flashing
Light Color
White
Interval
20s
Raw Code
Fl W 20s
Focal Height
169m
Geographic Range
31.2NM

Location

Country
🇹🇭TH
Latitude
8.6338°
Longitude
97.6489°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
30m
Tower Shape
skeletal
Tower Color
white
Material
metal

Structure: skeletal tower, painted white

References & Identifiers

Nearest Port
Phuket(66.2 km)
Admiralty No.
F1168
NGA No.
22200
ARLHS No.
THA-039
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Frequently Asked Questions

How do mariners identify Ko Similan Lighthouse at night?+
Ko Similan displays the characteristic Fl White 20s. 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 Ko Similan Lighthouse guide vessels into?+
Ko Similan Lighthouse assists vessels approaching 1 nearby port. The closest is Ban Talat Takua Pa at 44.2 NM to the ENE. Mariners should consult the relevant chart for full approach and pilotage information.
Is Ko Similan Lighthouse still active and maintained?+
Yes, Ko Similan 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 Ko Similan Lighthouse?+
You can track vessels near Ko Similan 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.