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Ko Wang Nai Lighthouse

Fl White 9s🇹🇭THOperational

Location & Light Range

About Ko Wang Nai Lighthouse

This square skeletal metal tower stands 9 meters tall and is painted white. With a focal height of 69 meters, it emits a white light. The light produces one white flash every 9 seconds, visible for a geographic range of 21.3 nautical miles. The lighthouse is situated on a small island positioned in the strait between Ko Samui and the Thai mainland. Its location is near the port of Khanom, approximately 6.3 kilometers away.

Why it matters: The lighthouse is important for vessels navigating the strait between Ko Samui and the mainland, a key shipping lane for local transport and tourism.

Light & Optic

Characteristic Signature
Fl White 9s
Flash Type
Flashing
Light Color
White
Interval
9s
Raw Code
Fl W 9s
Focal Height
69m
Geographic Range
21.3NM

Location

Country
🇹🇭TH
Latitude
9.3126°
Longitude
99.8910°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9m
Tower Shape
square
Tower Color
white
Material
metal

Structure: (?) square pyramidal skeletal tower, painted white

References & Identifiers

Nearest Port
Khanom(6.3 km)
Admiralty No.
F2914
NGA No.
20832
ARLHS No.
THA-044
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Frequently Asked Questions

How do mariners identify Ko Wang Nai Lighthouse at night?+
Ko Wang Nai displays the characteristic Fl White 9s. 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 Wang Nai Lighthouse guide vessels into?+
Ko Wang Nai Lighthouse assists vessels approaching 5 nearby ports. The closest is Khanom at 4.9 NM to the SSW. Other ports served include Nakhon Si Thammarat (5 NM SSW), Pak Phanang (6.8 NM S), Koh Samui (10.3 NM N), Ko Samui (13.6 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ko Wang Nai Lighthouse still active and maintained?+
Yes, Ko Wang Nai 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 Wang Nai Lighthouse?+
You can track vessels near Ko Wang Nai 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.