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Kriisi Lighthouse

Fl White🇫🇮Ii, FIOperational

Location & Light Range

About Kriisi Lighthouse

Built in 1939, the Kriisi lighthouse is a white, cylindrical concrete tower standing 5 meters tall. Its focal height reaches 12 meters, and it emits a green flash every 3 seconds, with a geographic range of 11 nautical miles. The structure features an octagonal base, a lantern room, and a gallery. It was constructed next to an existing historic daybeacon. The lighthouse went out of service between 1978 and 1980, and has remained inactive since 1986. It is located in the North Ostrobothnia region of Finland, near the city of Ii.

Why it matters: The lighthouse is significant as it was built alongside an older daybeacon, illustrating the evolution of navigational aids in Finland. This pairing marks a coastal area where consistent maritime guidance has been required over time.

Light & Optic

Characteristic Signature
Fl White
Flash Type
Flashing
Light Color
White
Raw Code
Fl G 3s
Focal Height
12m
Light Range
1.8NM (3.3 km)
Geographic Range
11NM

Construction & History

Year Built
1939

Significant events: Inactive 1978-1980, Inactive since 1986

References & Identifiers

Nearest Port
Haukipudas(2.8 km)
Admiralty No.
C4105.5
NGA No.
116-18539
Wikidata
Q62129845 →

Tower & Structure

Tower Height
5m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: octagonal cylindrical concrete tower with lantern and gallery, painted white

Location

City
Ii
Country
🇫🇮Finland
Region
North Ostrobothnia
Sea Region
Finland, next to a historic daybeacon
Latitude
65.2426°
Longitude
25.1921°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Kriisi Lighthouse be seen?+
With a focal height of 12 meters and a nominal range of 1.8 nautical miles (approximately 3.3 km), Kriisi is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Kriisi Lighthouse at night?+
Kriisi displays the characteristic Fl White. 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 Kriisi Lighthouse guide vessels into?+
Kriisi Lighthouse assists vessels approaching 5 nearby ports. The closest is Halosenlahti at 3.2 NM to the E. Other ports served include Haukipudas (4.9 NM SE), KIVINIEMI SOUTH (8.5 NM SSE), Pateniemi (9.8 NM SSE), Uleåborg (Oulu) (15 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kriisi Lighthouse still active and maintained?+
Yes, Kriisi 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 Kriisi Lighthouse?+
Kriisi 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 Kriisi Lighthouse?+
You can track vessels near Kriisi 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.