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Sattahip Ko Mu Breakwater Lighthouse

Fl (2) White 5s🇹🇭Khet Udomsak, THOperational

Location & Light Range

About Sattahip Ko Mu Breakwater Lighthouse

This white, cylindrical concrete tower stands 7 meters tall and is located at the southeast end of a breakwater extending from Ko Mu island into the entrance of Sattahip harbor. Its focal plane reaches 14 meters above the water. The lighthouse emits a white flash every 5 seconds. The current structure, a square cylindrical concrete tower, replaced an earlier one between 2010 and 2015. It guides vessels navigating the waters near Khet Udomsak in Chon Buri Province.

Why it matters: The lighthouse marks the end of the breakwater, aiding safe passage into Sattahip harbor, a significant port for commercial and naval activities.

Light & Optic

Characteristic Signature
Fl (2) White 5s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
5s
Raw Code
Fl W 5s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Significant events: tower replaced around 2010-2015

References & Identifiers

Nearest Port
Sattahip(1.0 km)
Admiralty No.
F2975.4
NGA No.
20620

Tower & Structure

Tower Height
7m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: square cylindrical white concrete tower

Location

City
Khet Udomsak
Country
🇹🇭Thailand
Region
Chon Buri Province
Sea Region
entrance to Sattahip harbor, Thailand, marking the end of a breakwater extending southeast from Ko Mu island
Latitude
12.6165°
Longitude
100.9095°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sattahip Ko Mu Breakwater Lighthouse at night?+
Sattahip Ko Mu Breakwater displays the characteristic Fl (2) White 5s — 2 white flashes every 5 seconds. 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 Sattahip Ko Mu Breakwater Lighthouse guide vessels into?+
Sattahip Ko Mu Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Sattahip at 1.5 NM to the NW. Other ports served include Tungprong Pt (6.7 NM NW), Map Ta Phut (14.1 NM E), PATTAYA (19.5 NM N), Pak Nam (23.1 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sattahip Ko Mu Breakwater Lighthouse still active and maintained?+
Yes, Sattahip Ko Mu Breakwater 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 Sattahip Ko Mu Breakwater Lighthouse?+
You can track vessels near Sattahip Ko Mu Breakwater 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.