One of the best places on Earth to see the northern lights, located in the heart of the Arctic Circle with clear skies and easy accessibility.
Tromsø, Norway
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
Great Chance!Peak Kp
3
Clouds
3%
Dark hrs
9h
Moon 51% full
Saturday
Sep 19
Great Chance!Peak Kp
1.7
Clouds
6%
Dark hrs
9h
Moon 60% full
Sunday
Sep 20
No ChanceSolar activity (Kp 1.7) is enough here, but 81% cloud cover blocks the view.
Peak Kp
1.7
Clouds
98%
Dark hrs
9.3h
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.