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Cabo Blanco Lighthouse

Fl (5) W 40s🇦🇷Region Patagonia/ Provincia Santa Cruz/ Dept Deseado/ Golfo San Jorge, AROperational

Location & Light Range

About Cabo Blanco Lighthouse

This round masonry tower, painted white, was constructed and first illuminated in 1917. Standing 27 meters tall, it also includes an attached white dwelling. The lighthouse emits five white flashes over a 40-second cycle. A radiobeacon is also present at this location. The structure is located in the Patagonia region of Argentina.

Why it matters: The light has a geographic range of 14 nautical miles and is situated in the Golfo San Jorge.

Light & Optic

Characteristic Signature
Fl (5) W 40s
Flash Type
Flashing
Light Color
White
Flash Count
5 flashes
Interval
40s
Raw Code
Fl.(5)W. period 40s
Focal Height
67m
Light Range
14NM (25.9 km)
Geographic Range
14NM

Construction & History

Year Built
1917

References & Identifiers

Admiralty No.
G1134
NGA No.
19912
Wikidata
Q5395993 →

Tower & Structure

Tower Height
27m
Tower Shape
round
Tower Color
white
Material
masonry

Structure: Round masonry tower, white dwelling; 89. Radiobeacon. Fl.(3)W

Location

City
Region Patagonia/ Provincia Santa Cruz/ Dept Deseado/ Golfo San Jorge
Country
🇦🇷AR
Latitude
-47.2023°
Longitude
-65.7386°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Cabo Blanco Lighthouse be seen?+
With a focal height of 67 meters and a nominal range of 14 nautical miles (approximately 25.9 km), Cabo Blanco 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 Cabo Blanco Lighthouse at night?+
Cabo Blanco displays the characteristic Fl (5) W 40s — 5 white flashes every 40 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 Cabo Blanco Lighthouse guide vessels into?+
Cabo Blanco Lighthouse assists vessels approaching 1 nearby port. The closest is Puerto Deseado at 34 NM to the S. Mariners should consult the relevant chart for full approach and pilotage information.
Is Cabo Blanco Lighthouse still active and maintained?+
Yes, Cabo Blanco 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 Cabo Blanco Lighthouse?+
You can track vessels near Cabo Blanco 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.