The explosion of colours across the sky delights visitors from autumn until late winter. This typical phenomenon of the polar region occurs when the particles accelerated by the magnetic field of the Earth collide with airborne particles. The occurrence of the Northern Lights is largely dependent on the activity of the sun, which varies in cycles of about 11 years.
In northernmost Lapland it is possible to see the Northern Lights almost every evening, provided that it is dark and the sky is clear. In the Inari-Saariselkä region a profusion of Northern Lights are witnessed, though clouds can impair visibility in the same way as the light summer nights. On average, Northern Lights can be seen in northernmost Lapland up to 200 nights a year.
On average, Northern Lights can be seen in northernmost Lapland up to 200 nights a year.