Aurora Borealis in Jönköping

Sweden · 57.78°, 14.16° · geomagnetic 57.1° · needs Kp 7

Tonight's aurora forecast for Jönköping

23%

Peak chance of a visible display tonight, from the same model the Revon app runs. Jönköping needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.8. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
23%
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:36 UTC

Local aurora guide for Jönköping

Jönköping is located at 57.1° geomagnetic latitude. Auroras are typically visible at this latitude during intense geomagnetic storms, which require a Kp index of 7 or higher.

On average, there are about 2.4 nights per year in Jönköping where conditions are suitable for aurora viewing. These opportunities are rare and require significant geomagnetic activity.

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

During May, June, and July, Jönköping experiences periods without full darkness, which can make aurora viewing impossible even if activity is high.

Jönköping has a Bortle scale rating of 5, indicating a suburban sky. Areas with less light pollution, such as Bortle 4 skies, can be found nearby.

Specific locations near Jönköping offer varied horizons. Brantåsen, a hill 9.4 km east-north-east, and Domneberg, a hill 12.5 km north-north-west, provide elevated viewpoints. Landsjön lake is 13.4 km north-east, Nackebosjön lake is 16.7 km west-north-west, and Hattåsen ridge is 25.7 km west-north-west.

Records from 2016 indicate 25 verified aurora reports within 300 km of Jönköping. The period of record for viable aurora nights spans from April 2, 2016, to March 30, 2026.

Notable qualifying nights with significant geomagnetic activity (Kp 7.0 or higher) have been recorded in recent years. These include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), January 19, 2026 (Kp 8.67), November 12, 2025 (Kp 7.33), and November 11, 2025 (Kp 8.67).

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

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Nearby towns

Forecasts for places within reach of Jönköping.