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Dejeudden Lighthouse

Q White/Red/Green 2.5s🇸🇪Norrtälje kommun, SEOperational

Location & Light Range

About Dejeudden Lighthouse

Built in 1939, Dejeudden Lighthouse is a 6-meter white tripod structure with a red lantern, situated on a small equipment shed. It stands 8 meters above sea level and emits a quick flashing white, red, or green light depending on the direction of approach. This light has a geographic range of 9.7 nautical miles. The lighthouse is located on a point of land about 2.5 kilometers south of Simpnäs in Stockholm County. The site is open to the public, but the tower itself is closed.

Why it matters: The lighthouse provides directional guidance using its quick-flashing sector light, aiding mariners in identifying safe channels and avoiding hazards near the point of land south of Simpnäs.

Light & Optic

Characteristic Signature
Q White/Red/Green 2.5s
Flash Type
Quick
Light Color
White/Red/Green
Interval
2.5s
Raw Code
Q W, R, G
Focal Height
8m
Light Range
9NM (16.7 km)
Geographic Range
9.7NM

Construction & History

Year Built
1939

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Shape
tripod
Tower Color
white with red lantern

Structure: A 6m post structure mounted on a small equipment shed, painted white with a red lantern.

Location

City
Norrtälje kommun
Country
🇸🇪Sweden
Region
Stockholm County
Sea Region
a point of land about 2.5 km (1.5 mi) south of Simpnäs
Latitude
59.8577°
Longitude
19.0840°

References & Identifiers

Nearest Port
Kapellskar(8.2 km)
Admiralty No.
C6372
NGA No.
10048
Wikidata
Q32231287 →
OpenStreetMap
View on OSM →
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Frequently Asked Questions

How far offshore can Dejeudden Lighthouse be seen?+
With a focal height of 8 meters and a nominal range of 9 nautical miles (approximately 16.7 km), Dejeudden 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 Dejeudden Lighthouse at night?+
Dejeudden displays the characteristic Q White/Red/Green 2.5s. 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/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Dejeudden Lighthouse guide vessels into?+
Dejeudden Lighthouse assists vessels approaching 5 nearby ports. The closest is Linanäs at 5.7 NM to the SSE. Other ports served include Kapellskär (8.5 NM S), Norrtälje (12.8 NM WSW), Grisslehamn (16.4 NM NNW), Hallstavik (18.6 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dejeudden Lighthouse still active and maintained?+
Yes, Dejeudden 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 Dejeudden Lighthouse?+
Dejeudden Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Dejeudden Lighthouse?+
You can track vessels near Dejeudden 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.