Aurora Borealis in Jakobstad

Finland · 63.67°, 22.70° · geomagnetic 61.4° · needs Kp 5

Tonight's aurora forecast for Jakobstad

48%

Peak chance of a visible display tonight, from the same model the Revon app runs. Jakobstad needs Kp 5 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
48%
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Jakobstad

Aurora viewing in Jakobstad is influenced by geomagnetic activity. A minimum Kp of 5 is generally needed for visible aurora at this latitude.

The geomagnetic latitude of Jakobstad is approximately 61.4°.

On average, there are about 18.6 nights per year with sufficient geomagnetic activity for aurora viewing. This is based on data spanning from 2016 to 2026.

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

From April through August, Jakobstad experiences periods without full darkness, which can significantly reduce the chances of seeing the aurora.

Jakobstad is classified as Bortle 6, indicating a suburban sky brightness that can interfere with faint aurora displays.

Areas with darker skies, such as near Larsmo approximately 13 km north-west, are classified as Bortle 4.

Local terrain features include hills like Lilla Kivikari and Fallberget, and headlands like Kattrumpan, which may offer varied viewing perspectives.

Geographic features near Jakobstad include islands such as Iso Hietasaari and Nylundsgrundet, located to the north-west and east respectively.

These locations, along with hills and headlands, offer varied perspectives of the surrounding landscape.

Historical records show 152 verified aurora sightings within a 300 km radius of Jakobstad between 2015 and 2016.

The period from 2016 to 2026 includes numerous nights with Kp values of 5.0 or higher, indicating potential aurora visibility.

Sources: Revon location dataset · 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

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Nearby towns

Forecasts for places within reach of Jakobstad.