Live Northern Lights forecast for Rovaniemi, Finland at 66.5°N: current OVATION chance, local Viewing Score, cloud cover, best time and a 3-day outlook.
Strong aurora activity and clear skies. Good conditions for observing the Northern Lights.
Kp index4.7High activity
Cloud cover31%Mostly clear
Best time22:00 – 00:45Local time
Cloud cover31%Mostly clear
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Detailed space weather dataRovaniemi sits at 66.5°N, close to the typical northern auroral zone. The oval position matters here, but darkness and cloud cover can influence real-world visibility as much as the Kp index itself.
Around Rovaniemi, long northern nights can provide extended observing windows, but local cloud cover still decides whether an active aurora is visible from the ground.
All times on this page use the local Europe/Helsinki time zone. The forecast combines current auroral activity, predicted Kp, darkness, Moon conditions and local weather to estimate practical viewing conditions near Rovaniemi.
Viewing Score is a local 0–100 estimate rather than an official NOAA probability. The current score starts from the aurora chance for Rovaniemi; future hours adjust auroral activity using the predicted Kp.
Darkness, cloud cover and Moon illumination then modify the result. Cloud cover only affects the score when the “Include clouds in score” switch is enabled. Daylight can reduce the score to zero, while a bright Moon above the horizon applies a smaller penalty.
