Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

San Dionisio Del Mar Lighthouse

Fl (4) W 16s🇲🇽South Coast, MXOperational

Location & Light Range

About San Dionisio Del Mar Lighthouse

This white, cylindrical concrete tower stands 24 meters tall, with its light positioned 17 meters above sea level. The structure features a rectangular base. It emits two white flashes every 3 seconds, visible for a geographic range of 4 nautical miles. The lighthouse is operational and maintained as part of Mexico's coastal navigation aids.

Light & Optic

Characteristic Signature
Fl (4) W 16s
Flash Type
Flashing
Light Color
White
Flash Count
4 flashes
Interval
16s
Raw Code
Q.(2)W. period 3s
Focal Height
17m
Geographic Range
4NM

Location

City
South Coast
Country
🇲🇽MX
Latitude
16.2723°
Longitude
-94.8017°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
24m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: White round concrete tower, rectangular base; 24

References & Identifiers

Admiralty No.
G3431.5
NGA No.
15296
ARLHS No.
MEX-130
Live tracking · 50,000+ mariners

Find San Dionisio Del Mar Lighthouse on the live nautical map

Plan voyages near MX, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify San Dionisio Del Mar Lighthouse at night?+
San Dionisio Del Mar displays the characteristic Fl (4) W 16s — 4 white flashes every 16 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 Dionisio Del Mar Lighthouse guide vessels into?+
San Dionisio Del Mar Lighthouse assists vessels approaching 2 nearby ports. The closest is Juchitán de Zaragoza at 15.7 NM to the NW. Other ports served include Salina Cruz (22.9 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is San Dionisio Del Mar Lighthouse still active and maintained?+
Yes, San Dionisio 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 Dionisio Del Mar Lighthouse?+
You can track vessels near San Dionisio 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.