Aurora Borealis in Laajasalo
Finland · 60.18°, 25.03° · geomagnetic 57.7° · needs Kp 7
Tonight's aurora forecast for Laajasalo
26%
Peak chance of a visible display tonight, from the same model the Revon app runs. Laajasalo needs Kp 7 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.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:35 UTC
Local aurora guide for Laajasalo
Laajasalo is at 57.7° geomagnetic latitude. Auroras are typically visible at this latitude during periods of high geomagnetic activity, specifically when the Kp index reaches 7.
On average, there are about 2.3 nights per year with sufficient geomagnetic activity for aurora viewing in this region. These opportunities are spread across the period from 2016 to 2026.
The best months for aurora viewing in Laajasalo are September, November, and March. These months offer a good balance of dark skies and potential aurora activity.
From May through August, the region experiences periods without full darkness, which can significantly reduce the visibility of auroras.
Laajasalo has a Bortle scale rating of 8, indicating significant light pollution. This level of artificial light can make faint auroras difficult to see.
Darker skies, rated Bortle 4 and 5, can be found approximately 44 km east-south-east near Porvoo and 32 km south-east near Porvoo, respectively.
The immediate area includes Paloluoto and Tervaluoto to the east, Majavakallio to the north, Gammelstadsfjärden to the north-north-west, and Punapaasi to the north-east.
Nearby geographic features include Paloluoto and Tervaluoto, which are islands located to the east of Laajasalo.
To the north, Majavakallio is a hill, and Gammelstadsfjärden is a bay situated to the north-north-west.
Punapaasi, a headland, is located to the north-east of Laajasalo.
Between 2015 and 2016, there were 40 verified aurora reports within a 300 km radius of Laajasalo.
The period between 2016 and 2026 includes several nights with significant geomagnetic activity. Notable qualifying nights 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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