Northern lights in Rovaniemi in April

Possible, with patience — 24% of April nights offer a window.

The numbers behind it: April nights in Rovaniemi average about 3 dark hours, geomagnetic activity reaches local viewing levels on 64% of days, and 37% of nights offer at least one reasonably clear hour after dark.

Neither clouds nor solar activity dominates — April failures are usually bad single-night luck. Several nights in a row is the honest insurance policy.

Numbers come from 1996–2025 Kp records (GFZ Potsdam) and 2015–2024 hourly cloud history for Rovaniemi itself — the full method is on the methodology page. Travelling soon? Check tonight's live Rovaniemi forecast.

April against the rest of the year

1. Jan18% of nights
2. Feb21% of nights
3. Mar36% of nights
4. Apr24% of nights
5. Maymidnight sun
6. Junmidnight sun
7. Julmidnight sun
8. Aug11% of nights
9. Sep29% of nights
10. Oct24% of nights
11. Nov14% of nights
12. Dec15% of nights

March in Rovaniemi · May in Rovaniemi · full year overview

April elsewhere under the oval

• Yellowknife 59% of nights
• Fairbanks 42% of nights
• Reykjavík 24% of nights
• Kiruna 22% of nights
• Lofoten Islands 19% of nights
• Tromsø 15% of nights
• Abisko 13% of nights