Aurora Borealis in Gustavsberg
Sweden · 59.33°, 18.39° · geomagnetic 57.9° · needs Kp 7
Tonight's aurora forecast for Gustavsberg
39%
Peak chance of a visible display tonight, from the same model the Revon app runs. Gustavsberg 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.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:36 UTC
Local aurora guide for Gustavsberg
Gustavsberg is at 57.9° geomagnetic latitude. Auroras visible here typically require a Kp 7 or higher.
On average, there are about 2.4 nights per year with conditions suitable for aurora viewing.
The record span for these observations is from 2016 to 2026.
The best months for aurora viewing in Gustavsberg are September, November, and March.
From May to August, there is not enough full darkness for optimal viewing.
Gustavsberg has a Bortle scale rating of 6, indicating moderate light pollution.
Areas with darker skies, rated Bortle 4, are located 22 km east-south-east near Österåkers kommun.
Further dark sky areas, rated Bortle 5, are found 20 km north-north-east near Värmdö kommun. Local terrain includes islands, a lake, a bay, and a headland.
Near Gustavsberg, Ormingelandet is an island located 3.3 km west-north-west.
Stor-Ängsholmen, another island, is situated 3.3 km north-east.
Insjön, a lake, lies 3.5 km west-north-west, while Torsbyfjärden, a bay, is 4.3 km north-east. Gruvudden, a headland, is 10.1 km north.
There have been 30 verified aurora reports within 300 km of Gustavsberg between 2015 and 2016.
Notable qualifying nights with high Kp values include 2026-03-20 (Kp 7.0), 2026-01-20 (Kp 7.67), and 2026-01-19 (Kp 8.67).
Additional qualifying nights occurred on 2025-11-12 (Kp 7.33) and 2025-11-11 (Kp 8.67).
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 Gustavsberg 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 Gustavsberg.