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Isla San Martín Lighthouse

Fl (2) White 12s🇲🇽MXOperational

Location & Light Range

About Isla San Martín Lighthouse

A square pyramidal skeletal tower with a gallery stands on the southwest cliff of Isla San Martín, a volcanic island located approximately 6.5 km from the Mexican coast. Constructed from concrete, this 10.5-meter tall structure displays black and yellow banding. Its light emits white flashes on a 12-second cycle, visible for 18.5 nautical miles. The lighthouse rises to a focal height of 49 meters above the sea. It serves as a navigational aid from its position on this remote island.

Why it matters: This lighthouse warns mariners of the volcanic Isla San Martín, an offshore hazard that rises abruptly from the sea, guiding vessels along coastal shipping lanes.

Light & Optic

Characteristic Signature
Fl (2) White 12s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
12s
Raw Code
Fl W 12s
Focal Height
49m
Geographic Range
18.5NM

Location

Country
🇲🇽Mexico
Sea Region
Isla San Martín, a small volcanic island approximately 6.5 km off the coast near San Martín, Mexico. It is situated atop a cliff on the southwest side of the island.
Latitude
30.4844°
Longitude
-116.1231°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10.5m
Tower Shape
square
Tower Color
black and yellow
Material
concrete

Structure: square pyramidal skeletal tower with gallery

References & Identifiers

Nearest Port
San felipe(73.7 km)
Admiralty No.
G3618
NGA No.
14388
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Frequently Asked Questions

How do mariners identify Isla San Martín Lighthouse at night?+
Isla San Martín displays the characteristic Fl (2) White 12s — 2 white flashes every 12 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 Isla San Martín Lighthouse guide vessels into?+
Isla San Martín Lighthouse assists vessels approaching 1 nearby port. The closest is Punta Baja at 34.9 NM to the SSE. Mariners should consult the relevant chart for full approach and pilotage information.
Is Isla San Martín Lighthouse still active and maintained?+
Yes, Isla San Martín 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 Isla San Martín Lighthouse?+
You can track vessels near Isla San Martín 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.