Aurora Borealis in Tornio

Finland · 65.85°, 24.15° · geomagnetic 63.2° · needs Kp 3

Tonight's aurora forecast for Tornio

49%

Peak chance of a visible display tonight, from the same model the Revon app runs. Tornio needs Kp 3 before anything clears the northern horizon, and tonight the forecast peaks at Kp 4.7 — comfortably over the line.

Tonight Tue 08 Sep
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Tornio

Tornio is located at 63.2° geomagnetic latitude. Auroras are typically visible when the planetary Kp index reaches 3.

With an average of 107.5 viable nights per year, Tornio offers frequent opportunities for aurora viewing.

The best months for aurora viewing in Tornio are March, October, and February. These months offer a good balance of darkness and aurora activity.

From April through August, Tornio experiences periods without full darkness, which can impact aurora visibility.

Tornio experiences a Bortle 7 light pollution level. However, areas with Bortle 4 conditions can be found approximately 18 km north-northeast of the city.

The horizon is relatively clear in several directions, with notable features including Tanskinsaari island to the north, Klipunsaari island to the east, and Koijumaa hill to the northeast.

Geographic features near Tornio that may offer viewing opportunities include Tanskinsaari island, located 3.1 km to the north, and Klipunsaari island, situated 4.3 km to the east.

Further afield, Koijumaa hill lies 5.2 km north-east, Revonpesämaa hill is 5.6 km north-north-east, and Ahvenjärvi lake is 10.9 km east-north-east.

Between 2015 and 2016, there were 196 verified aurora reports within a 300 km radius of Tornio.

The historical data indicates that nights with Kp 3.0 or higher occurred on March 26, 27, 28, 29, and 30, 2026.

Sources: Revon analysis of NOAA planetary Kp · Solar declination and hour-angle calculation · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports

Know when it is worth going outside

Revon watches the Tornio forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.

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Nearby towns

Forecasts for places within reach of Tornio.