Tromsø vs Reykjavík

Aurora forecast comparison — updated hourly

Tonight's Verdict
🇳🇴
Tromsø
Peak: Oct–Mar
Skip it
Maybe
Book it
☀️ Too bright — midnight sun
Kp tonight3.7
Clouds (ECMWF)100%
Aurora probability2%
🇮🇸
Reykjavík
Peak: Sep–Mar
Skip it
Maybe
Book it
🚫 Not tonight — too cloudy
Kp tonight3.7
Clouds (ECMWF)100%
Aurora probability0%
Head-to-Head
Metric🇳🇴 Tromsø🇮🇸 Reykjavík
Latitude69.7°N64.1°N
Kp for overhead auroraKp 1+Kp 1+
Kp for good displayKp 3+Kp 2+
Cloud cover (ECMWF)100%100%
Cloud cover (GFS)100%100%
Dark hours–2.4h
Aurora probability2%0%
Solar wind speed416 km/s416 km/s
Bz value+4.2 nT+4.2 nT
Best window tonight22h (99%)22h (100%)

Highlighted cell = better value for aurora viewing

Next 3 Nights
Night🇳🇴 Tromsø🇮🇸 Reykjavík
Thu, May 14
✗
100%
Kp 3.7
✗
100%
Kp 3.7
Fri, May 15
✓
3%
Kp 5.7
✗
100%
Kp 5.7
Sat, May 16
✓
36%
Kp 5.0
✗
95%
Kp 5.0
Which should I choose?

Tromsø vs Reykjavík — Which should I choose?

Both cities require Kp 1+ to see aurora overhead, placing them at a similar position relative to the auroral oval. Tromsø: Inside the auroral oval — peak aurora season September to March. Reykjavík: Iceland's capital — combine northern lights with Golden Circle tours.

Full Forecasts
🇳🇴View full Tromsø forecast→🇮🇸View full Reykjavík forecast→
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