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Ko Sarani Lighthouse

Fl White 3s🇹🇭THOperational

Location & Light Range

About Ko Sarani Lighthouse

Also known as: Ko Sarani (Ko Phi)

This square, skeletal metal tower stands 9 meters tall and exhibits a white finish. Its light, positioned 20 meters above sea level, emits a single white flash every 3 seconds. With a geographic range of 13.2 nautical miles, it serves as a navigational aid on the eastern approach to the Pak Chan estuary. The lighthouse is located on a small island approximately 2.7 kilometers from Ranong, a port city in the Andaman Sea. The site is open to visitors, but access to the tower itself is restricted.

Why it matters: The lighthouse is important for guiding vessels entering and exiting the Pak Chan estuary, a key route for commercial and fishing vessels bound for Ranong. It also aids in navigating the intricate channels and warns of natural hazards at the estuary's entrance.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
20m
Geographic Range
13.2NM

Location

Country
🇹🇭TH
Latitude
9.9638°
Longitude
98.5862°

References & Identifiers

Nearest Port
Ranong(2.7 km)
Admiralty No.
F1160
NGA No.
22228
ARLHS No.
THA-033

Tower & Structure

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

Structure: square white skeletal tower

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 Sarani Lighthouse at night?+
Ko Sarani displays the characteristic Fl White 3s. 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 Sarani Lighthouse guide vessels into?+
Ko Sarani Lighthouse assists vessels approaching 5 nearby ports. The closest is RANONG at 0.8 NM to the E. Other ports served include Victoria Point (2.1 NM W), Ranong (2.8 NM E), Lang Suan (33.4 NM E), Chumphon (49.1 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ko Sarani Lighthouse still active and maintained?+
Yes, Ko Sarani 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 Sarani Lighthouse?+
You can track vessels near Ko Sarani 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.