Rovaniemi vs Tromsø

Aurora forecast comparison — updated hourly

Tonight's Verdict
🇫🇮
Rovaniemi
Peak: Sep–Mar
Skip it
Maybe
Book it
✅ Great night — book it!
Kp tonight5.7
Clouds (ECMWF)1%
Aurora probability9%
🇳🇴
Tromsø
Peak: Oct–Mar
Skip it
Maybe
Book it
✅ Great night — book it!
Kp tonight5.7
Clouds (ECMWF)0%
Aurora probability12%
Head-to-Head
Metric🇫🇮 Rovaniemi🇳🇴 Tromsø
Latitude66.5°N69.7°N
Kp for overhead auroraKp 2+Kp 1+
Kp for good displayKp 3+Kp 3+
Cloud cover (ECMWF)1%0%
Cloud cover (GFS)64%12%
Dark hours2.2h4.8h
Aurora probability9%12%
Solar wind speed334 km/s334 km/s
Bz value+0.8 nT+0.8 nT
Best window tonight22h (0%)22h (0%)

Highlighted cell = better value for aurora viewing

Next 3 Nights
Night🇫🇮 Rovaniemi🇳🇴 Tromsø
Fri, Apr 17
✓
1%
Kp 5.7
✓
0%
Kp 5.7
Sat, Apr 18
✓
6%
Kp 6.0
✓
0%
Kp 6.0
Sun, Apr 19
✗
76%
Kp 5.0
✓
17%
Kp 5.0
Which should I choose?

Rovaniemi vs Tromsø — Which should I choose?

Tromsø sits closer to the auroral oval, needing only Kp 1+ for visible aurora versus Kp 2+ for Rovaniemi — meaning Tromsø sees aurora more frequently. Tromsø offers 4.8h of darkness tonight — a longer window to catch a display. Rovaniemi: On the Arctic Circle — combine the northern lights with Santa's Village. Tromsø: Inside the auroral oval — peak aurora season September to March.

Full Forecasts
🇫🇮View full Rovaniemi forecast→🇳🇴View full Tromsø forecast→
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