Aurora Borealis in Sollentuna
Sweden · 59.43°, 17.95° · geomagnetic 58.1° · needs Kp 5
Tonight's aurora forecast for Sollentuna
42%
Peak chance of a visible display tonight, from the same model the Revon app runs. Sollentuna needs Kp 5 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.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:35 UTC
Local aurora guide for Sollentuna
Sollentuna is located at 58.1° geomagnetic latitude. Auroras are typically visible at this latitude when the planetary magnetic activity reaches Kp 5.
On average, there are 21.3 nights per year with sufficient geomagnetic activity for aurora viewing in this region. The historical record spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Sollentuna are September, March, and October. These months offer a good balance of darkness and potential auroral activity.
During May, June, July, and August, the region experiences periods without full darkness, which can make aurora sightings more challenging.
Sollentuna experiences a Bortle 7 sky, indicating significant light pollution. However, darker skies can be found within a reasonable distance.
A Bortle 4 sky is available approximately 40 km north-northeast near Norrtälje kommun, and a Bortle 5 sky is about 32 km east-northeast near Österåkers kommun.
Local features such as Rösjön lake to the east-northeast, Ravalen lake to the northwest, Törnberget hill to the north, and the Järvafältet and Törnskogen reserves offer varied horizons.
For aurora viewing, consider areas around Rösjön, a lake located 3.1 km east-northeast of Sollentuna. Ravalen, another lake, is situated 3.3 km northwest.
The hill Törnberget, 4.0 km north of Sollentuna, and the reserves Järvafältet (4.1 km west-northwest) and Törnskogen (5.0 km north) offer open spaces with varied horizons.
Historical data shows 30 verified aurora reports within 300 km of Sollentuna between January 1, 2015, and December 31, 2016.
The region has experienced nights with significant geomagnetic activity, including Kp 5.0 on March 24, 2026, Kp 5.0 on March 23, 2026, Kp 6.67 on March 22, 2026, Kp 6.0 on March 21, 2026, and Kp 7.0 on March 20, 2026.
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
Know when it is worth going outside
Revon watches the Sollentuna forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Nearby towns
Forecasts for places within reach of Sollentuna.