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Ko Nok Lighthouse

Fl White 5s🇹🇭THOperational

Location & Light Range

About Ko Nok Lighthouse

A square pyramidal skeletal tower, constructed of metal and painted white, stands 11 meters tall. Its focal height reaches 15 meters, and it emits a white flash every 5 seconds. This structure is located on a sandbar approximately 3.7 kilometers from Laem Chabang, with a geographic range of 11.9 nautical miles. The site is accessible to the public by boat, though the tower itself is closed for safety. Its design includes a square tower shape.

Why it matters: This lighthouse warns vessels of a submerged sandbar, a recognized hazard in the shipping lanes near Thung Suk La.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
15m
Geographic Range
11.9NM

Location

Country
🇹🇭TH
Latitude
13.0236°
Longitude
100.8206°

References & Identifiers

Nearest Port
Laem Chabang(3.7 km)
Admiralty No.
F2962
NGA No.
20660

Tower & Structure

Tower Height
11m
Tower Shape
square
Tower Color
white
Material
metal

Structure: square pyramidal skeletal tower, painted white

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ko Nok Lighthouse at night?+
Ko Nok 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 Ko Nok Lighthouse guide vessels into?+
Ko Nok Lighthouse assists vessels approaching 5 nearby ports. The closest is Laem Chabang at 4.8 NM to the ENE. Other ports served include PATTAYA (5.9 NM SSE), Ko Sichang (7.6 NM N), Si Racha (8 NM NNE), NH Prosperity (9.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ko Nok Lighthouse still active and maintained?+
Yes, Ko Nok 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 Nok Lighthouse?+
You can track vessels near Ko Nok 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.