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 tonight3.0

Clouds (ECMWF)91%

Aurora probability13%

🇮🇸

Reykjavík

Peak: Sep–Mar

Skip it

Maybe

Book it

🚫 Not tonight — too cloudy

Kp tonight3.0

Clouds (ECMWF)71%

Aurora probability16%

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)91%71%

Cloud cover (GFS)100%100%

Dark hours–5.1h

Aurora probability13%16%

Solar wind speed––

Bz value––

Best window tonight22h (85%)00h (61%)

Highlighted cell = better value for aurora viewing

Next 3 Nights

Night🇳🇴 Tromsø🇮🇸 Reykjavík

Thu, Aug 13

✗

91%

Kp 3.0

✗

71%

Kp 3.0

Fri, Aug 14

✗

100%

Kp 4.0

✓

Kp 4.0

Sat, Aug 15

✗

100%

Kp 3.7

✓

18%

Kp 3.7

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. Tonight Reykjavík has the clearer sky at 71% cloud cover versus 91% for the other city. 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→