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Ko Son Thai Lighthouse

Fl White 10s🇹🇭THOperational

Location & Light Range

About Ko Son Thai Lighthouse

This white, square skeletal metal tower stands 15 meters tall, with its light positioned 33 meters above sea level. It emits a single white flash every 10 seconds, visible for nearly 16 nautical miles. Located 2.8 kilometers from Ranong, the lighthouse is situated on a small, unnamed island. The structure is painted white, and its design features a square skeletal frame.

Why it matters: The lighthouse marks the western approach to the Pak Chan estuary, guiding vessels through a waterway known for shifting sands and currents.

Light & Optic

Characteristic Signature
Fl White 10s
Flash Type
Flashing
Light Color
White
Interval
10s
Raw Code
Fl W 10s
Focal Height
33m
Geographic Range
15.9NM

Location

Country
🇹🇭TH
Latitude
9.9624°
Longitude
98.5865°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
15m
Tower Shape
square
Tower Color
white
Material
metal

Structure: square skeletal tower, painted white

References & Identifiers

Nearest Port
Ranong(2.8 km)
Admiralty No.
F1161
NGA No.
22224
ARLHS No.
THA-040
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Frequently Asked Questions

How do mariners identify Ko Son Thai Lighthouse at night?+
Ko Son Thai displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Ko Son Thai Lighthouse guide vessels into?+
Ko Son Thai Lighthouse assists vessels approaching 5 nearby ports. The closest is RANONG at 0.8 NM to the E. Other ports served include Victoria Point (2.2 NM W), Ranong (2.8 NM E), Lang Suan (33.3 NM E), Chumphon (49.1 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ko Son Thai Lighthouse still active and maintained?+
Yes, Ko Son Thai 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 Son Thai Lighthouse?+
You can track vessels near Ko Son Thai 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.