Conditions for northern lights in Luleå
It has to be sufficient solar energy to create aurorae in the atmosphere combined with the energy impacting the atmosphere at an angle that is suitable for our location. Clear skies or scattered clouds are required for the northern lights to be visible. You can see them dancing over the city of Luleå, but they will be shy and not as prominent. Therefore we recommend you choose an open and suitably dark place and avoid well-lit places to any extent possible.
There is no ‘timetable’. Northern lights may occur at any point during the hours of darkness and vary in duration. Northern lights are visible in Luleå from late August until the first days of April. During the rest of the year, the skies are too bright for the phenomenon to be visible.
Colour of the northern lights
The colour of the northern lights depends on the height and speed at which the solar particles collide with the atmosphere.
Blue = up to 60 miles
Purple = above 60 miles
Green = up to 100 miles
Red = above 150 miles