Northern lights forecast for Trondheim
How likely are you to see the aurora in Trondheim tonight? We combine geomagnetic activity (Kp / OVATION), darkness and cloud cover into a simple tonight-and-next-nights viewing chance.
Viewing chance - next nights
| Night | Viewing chance | Kp (global) | Cloud cover |
|---|---|---|---|
| Tonight | Low | 5 | 69% |
| Tomorrow night | Low | 3 | 90% |
| Wednesday | Moderate | 4.3 | 20% |
3-day Kp forecast
Aurora oval - northern hemisphere
The Kp scale
The Kp index measures global geomagnetic activity from 0 (calm) to 9 (severe storm). At the latitude of Trondheim, the aurora can appear even at low Kp; higher Kp pushes it further south and makes it brighter.
About the northern lights in Trondheim
The aurora appears when charged particles from the sun hit the atmosphere and make gases glow - usually green, sometimes purple and red. Trondheim lies in the auroral zone, one of the best regions on Earth to see it. The season runs from late August to early April, with the darkest and best months from October to February. For the best experience, get away from city lights, dress warmly and be patient - the aurora can come and go within minutes.
Frequently asked questions about the aurora in Trondheim
Can I see the northern lights in Trondheim tonight?
It depends on three things: geomagnetic activity (Kp / OVATION), darkness and clear skies. The table above combines all three for tonight and the next nights. Trondheim is in the auroral zone, so even low activity can produce aurora when the sky is clear and dark.
When is the best time to see the aurora in Trondheim?
The season runs from late August to early April. The best chances are October through February, late evening and at night (roughly 21:00-02:00), when the sky is darkest.
What is the Kp index?
Kp is a global measure of geomagnetic activity from 0 (calm) to 9 (severe storm). At high latitudes the aurora can appear even at low Kp; higher Kp makes it brighter and visible further south.
Where should I go to see the aurora?
Get away from city lights and find a spot with a clear view to the north. A clear, dark sky matters more than altitude. Watch the cloud cover in the table above.
The aurora is unpredictable. This viewing chance blends geomagnetic activity, darkness and forecast cloud cover - it is a guide, not a guarantee. Always check the live sky.
Quick links
Where is Trondheim?Get accurate weather forecasts for Trondheim, located at latitude 63.43 and longitude 10.395. Stay updated with localized weather information tailored for Trondheim.