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Sattahip Range Front Lighthouse

Iso 4s🇹🇭Khet Udomsak, THOperational

Location & Light Range

About Sattahip Range Front Lighthouse

This skeletal metal tower, standing 17 meters tall, is painted white and supports a daymark of red with a white vertical stripe. Its focal height reaches 21 meters, and it emits an isophase yellow light every 4 seconds, visible for over 13 nautical miles. The structure, a triangular skeletal design, was relocated 50 meters north in 2019 to enhance its navigational function. The site is accessible to the public, though the tower itself remains closed. The nearest port, Sattahip, is approximately 0.5 kilometers away.

Why it matters: This range front light is essential for guiding vessels into Sattahip's Chuksamed Pier, marking the approach channel.

Light & Optic

Characteristic Signature
Iso 4s
Flash Type
Isophase
Interval
4s
Raw Code
Iso Y 4s
Focal Height
21m
Light Range
8NM (14.8 km)
Geographic Range
13.4NM

Location

City
Khet Udomsak
Country
🇹🇭Thailand
Region
Chon Buri Province
Latitude
12.6233°
Longitude
100.9141°

References & Identifiers

Nearest Port
Sattahip(0.5 km)
Admiralty No.
F2975
NGA No.
20628

Tower & Structure

Tower Height
17m
Tower Shape
skeletal
Tower Color
white
Material
metal

Structure: triangular skeletal tower, painted white; the tower carries a daymark painted red with a white vertical stripe

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Sattahip Range Front Lighthouse be seen?+
With a focal height of 21 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Sattahip Range Front is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Sattahip Range Front Lighthouse at night?+
Sattahip Range Front displays the characteristic Iso 4s. 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.
Which ports and harbors does Sattahip Range Front Lighthouse guide vessels into?+
Sattahip Range Front Lighthouse assists vessels approaching 5 nearby ports. The closest is Sattahip at 1.4 NM to the NW. Other ports served include Tungprong Pt (6.6 NM NW), Map Ta Phut (13.8 NM E), PATTAYA (19.1 NM N), Pak Nam (22.8 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sattahip Range Front Lighthouse still active and maintained?+
Yes, Sattahip Range Front 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 Range Front Lighthouse?+
You can track vessels near Sattahip Range Front 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.