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San Francisco Del Mar Lighthouse

Fl (3) W 12s🇲🇽South Coast, MXOperational

Location & Light Range

About San Francisco Del Mar Lighthouse

This concrete, cylindrical tower stands 34 meters tall and features red and yellow spiral bands. Its focal plane is 17 meters above sea level. The light emits an isophase white, red, and green signal on a 2-second cycle. The lighthouse guides vessels toward the entrance to Laguna Inferior. It is situated on a sand spit approximately 40 kilometers east of Salina Cruz. The surrounding area is noted for oil rigs located to the southeast, beyond the 20-meter depth line.

Why it matters: The lighthouse is located near oil rigs on the South Coast.

Light & Optic

Characteristic Signature
Fl (3) W 12s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
12s
Raw Code
Iso.W.R.G. period 2s
Focal Height
17m
Geographic Range
6NM

Location

City
South Coast
Country
🇲🇽MX
Latitude
16.2156°
Longitude
-94.8070°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
34m
Tower Shape
cylindrical
Tower Color
with red and yellow spiral bands
Material
concrete

Structure: Orange truncated pyramidal concrete tower; 34. Oil Rigs lie in area SE. outside 20m line

References & Identifiers

Admiralty No.
G3431
NGA No.
15292
ARLHS No.
MEX-073
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Frequently Asked Questions

How do mariners identify San Francisco Del Mar Lighthouse at night?+
San Francisco Del Mar displays the characteristic Fl (3) W 12s — 3 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.
Which ports and harbors does San Francisco Del Mar Lighthouse guide vessels into?+
San Francisco Del Mar Lighthouse assists vessels approaching 2 nearby ports. The closest is Juchitán de Zaragoza at 17.8 NM to the NW. Other ports served include Salina Cruz (21.9 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is San Francisco Del Mar Lighthouse still active and maintained?+
Yes, San Francisco Del Mar 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 San Francisco Del Mar Lighthouse?+
You can track vessels near San Francisco Del Mar 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.