Northern lights tonight in Ruka

Live hourly aurora score for Ruka, Finland: NOAA activity, cloud cover, darkness and the moon, with the nearest webcams.

North Ostrobothnia, Finland, 66.20°N 29.11°ERovaniemi guide

Nearest webcams

Closest cameras first, including road and weather cameras within about 400 km.

Northern lights in Ruka: what to expect

Latitude
66.20° N
Magnetic latitude
62.9°
Kp needed
2+
Clear-night chance
~46%

Ruka lies at 66.20° N in North Ostrobothnia, Finland, about 40 km south of the Arctic Circle. Its geomagnetic latitude of about 62.9° is just south of the usual auroral oval. Aurora is seen on many active nights, often low in the northern sky, and the oval's edge reaches this far south from about Kp 2. A dark, clear night has roughly a 46% chance of some aurora.

Nights with at least two hours of real darkness run from late August to mid-April. Around midsummer the sun does not set at all (early June to early July), and the light nights either side rule out aurora. Around the winter solstice the sun is more than 12° below the horizon for about 15.5 hours a day.

Clouds decide most nights. The hourly score above uses the live cloud forecast for this exact spot; for trip planning, the Rovaniemi guide (155 km away) covers the best months and clear-night odds for the wider region.

Coordinates: Wikipedia. Magnetic latitude, Kp and darkness are calculated from them; the clear-night chance is a long-term average, not a forecast.