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Isoniemi Range Rear Lighthouse

Oc White 6s🇫🇮Oulu, FIOperational

Location & Light Range

About Isoniemi Range Rear Lighthouse

A square steel skeletal tower, 12 meters tall, carries a rectangular daymark painted white with a red vertical stripe. The focal height of the light is 13 meters. First lit in 1939, this range rear light emits an occulting white light on a 6-second cycle, visible for 11.3 nautical miles. It is situated in a forest approximately 10 kilometers southwest of Haukipudas and 3.6 kilometers from the nearest port. The site is open to the public, though the tower itself is closed.

Why it matters: This range light is essential for guiding vessels departing Oulu, ensuring safe navigation along the northern Finnish coast.

Light & Optic

Characteristic Signature
Oc White 6s
Flash Type
Occulting
Light Color
White
Interval
6s
Raw Code
Oc W 6s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

Year Built
1939

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
square
Tower Color
white with a red vertical stripe
Material
steel

Structure: square skeletal tower carrying a rectangular daymark colored white with a red vertical stripe

Location

City
Oulu
Country
🇫🇮Finland
Region
North Ostrobothnia
Sea Region
The range guides vessels departing Oulu along the coast to the north. Located in a forest about 10 km southwest of Haukipudas.
Latitude
65.1540°
Longitude
25.2344°

References & Identifiers

Nearest Port
Haukipudas(3.6 km)
Admiralty No.
C4128.1
NGA No.
18672
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Frequently Asked Questions

How do mariners identify Isoniemi Range Rear Lighthouse at night?+
Isoniemi Range Rear displays the characteristic Oc White 6s. 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 color may indicate a specific sector or warning zone.
Which ports and harbors does Isoniemi Range Rear Lighthouse guide vessels into?+
Isoniemi Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Haukipudas at 3.1 NM to the NE. Other ports served include KIVINIEMI SOUTH (3.4 NM SE), Pateniemi (5 NM SE), Halosenlahti (5.2 NM NNE), Uleåborg (Oulu) (9.7 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Isoniemi Range Rear Lighthouse still active and maintained?+
Yes, Isoniemi Range Rear 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 Isoniemi Range Rear Lighthouse?+
Isoniemi Range Rear 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 Isoniemi Range Rear Lighthouse?+
You can track vessels near Isoniemi Range Rear 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.