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Dumbuck Lighthouse

Fl Green 2s🇬🇧GBOperational

Location & Light Range

About Dumbuck Lighthouse

Constructed in 1921, the Dumbuck Lighthouse is a 12-meter tall, cylindrical, two-stage stone tower painted green. It stands on the south side of the Clyde channel, just above Dumbarton. The lighthouse emits a green flashing light every 2 seconds. Its focal plane is 10 meters above sea level, providing a geographic range of 10.4 nautical miles. The nearest port is Bowling, located 1.4 kilometers away.

Why it matters: This lighthouse is essential for guiding vessels through the Clyde channel near Dumbarton, supporting the shipping routes that connect Glasgow to the sea.

Light & Optic

Characteristic Signature
Fl Green 2s
Flash Type
Flashing
Light Color
Green
Interval
2s
Raw Code
Fl G 2s
Focal Height
10m
Geographic Range
10.4NM

Construction & History

Year Built
1921

References & Identifiers

Nearest Port
Bowling(1.4 km)
ARLHS No.
SCO-367

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
green
Material
stone

Structure: round cylindrical 2-stage stone tower, painted green

Location

Country
🇬🇧United Kingdom
Region
Scotland
Sea Region
south side of the Clyde channel just above Dumbarton
Latitude
55.9297°
Longitude
-4.5420°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Dumbuck Lighthouse at night?+
Dumbuck displays the characteristic Fl Green 2s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Dumbuck Lighthouse guide vessels into?+
Dumbuck Lighthouse assists vessels approaching 5 nearby ports. The closest is SANDPOINT at 1.1 NM to the NW. Other ports served include Bowling (2 NM E), Old Kilpatrick (3.2 NM ESE), Port Glasgow (4.7 NM W), Clydebank (5.3 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dumbuck Lighthouse still active and maintained?+
Yes, Dumbuck 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.
What shipping routes pass near Dumbuck Lighthouse?+
Dumbuck Lighthouse is located within the English Channel / North Sea corridor — one of the world's busiest maritime corridors connecting the Atlantic to Northern European ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Dumbuck Lighthouse?+
You can track vessels near Dumbuck 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.