The official hometown of Santa Claus sits on the Arctic Circle, offering northern lights from September to March along with winter wonderland experiences.
Rovaniemi, Finland
It's daylight at your location — aurora only shows against a dark sky.
24h ago → 3 days ahead · Indigo bands = night · Gray area = clouds · Past is dimmed
Each night scored hour-by-hour — the gauge shows its best hour
Friday
Sep 18
No ChanceSolar activity (Kp 2.0) is enough here, but 98% cloud cover blocks the view.
Peak Kp
3
Clouds
100%
Dark hrs
9.3h
Moon 51% full
Saturday
Sep 19
No ChanceSolar activity (Kp 1.7) is enough here, but 99% cloud cover blocks the view.
Peak Kp
1.7
Clouds
100%
Dark hrs
9.7h
Moon 60% full
Sunday
Sep 20
No ChanceSolar activity (Kp 1.3) is enough here, but 100% cloud cover blocks the view.
Peak Kp
1.7
Clouds
100%
Dark hrs
9.7h
Moon 69% full
Events from the last 3 days that can influence aurora visibility
Slow solar wind stream. Minimal impact on aurora.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
How solar events cause aurora:
Indirect — can launch plasma clouds toward Earth
High — if aimed at Earth, causes aurora in 1-3 days
Direct — aurora is happening or imminent!
Moderate — can sustain aurora for days
Get alerts when aurora is visible at your location. Email, SMS, or push notification.