AuroraWhere is the best place to see the northern lights?
It depends on the month more than most guides admit. In ten winters of airport cloud reports from 12 aurora destinations, Alta in northern Norway had the clearest skies from October to February. In September, Yellowknife in Canada came first, and in March, Yellowknife and Levi in Finland tied. All 12 places are under or near the auroral oval, so on most dark nights the aurora is there. What decides whether you see it is the cloud.
Which destination is clearest in each month?
A night counts as usable here when it had at least two dark hours free of broken or overcast low cloud, in the hourly reports from the nearest airport, September 2016 to March 2026.
| Month | Clearest | Next two | Cloudiest |
|---|---|---|---|
| September | Yellowknife 60% | Levi 54%, Alta 52% | Fairbanks 30% |
| October | Alta 58% | Tromsø 56%, Kiruna/Abisko 55% | Yellowknife 40% |
| November | Alta 80% | Kiruna/Abisko 63%, Lofoten 63% | Yellowknife 39% |
| December | Alta 86% | Tromsø 70%, Kirkenes 66% | Rovaniemi 49% |
| January | Alta 86% | Kirkenes 74%, Kiruna/Abisko 72% | Iceland 50% |
| February | Alta 79% | Yellowknife 70%, Kiruna/Abisko 67% | Iceland 45% |
| March | Yellowknife 74% | Levi 74%, Saariselkä 69% | Iceland 44% |
Abisko and Kiruna share one airport, so they appear together.
Norway early, Finland and Canada late
The surprise in this table is how the ranking flips during the winter.
The Norwegian coast is at its best in December and January. Tromsø had a usable sky on 70% of December nights, and only 46% in March. Spring brings more showers off the sea, and the dark hours shrink fast: Tromsø has about 16 dark hours in mid-December and 8 in mid-March.
Finnish Lapland and Yellowknife go the other way. October and November there are grey: Rovaniemi had a usable sky on 42–43% of nights, Yellowknife on 39–40%. By March, both are among the clearest places on the list, with Levi and Yellowknife at 74%.
So if you can only travel in March, Finland, Abisko or Yellowknife beat the Norwegian coast. If you're going in December, Norway is the better bet.
Why is Alta so clear?
Alta sits at the head of a long fjord, behind mountains that catch much of the weather coming in off the Norwegian Sea, so it gets less rain and snow than the outer coast. In December and January it had a usable sky on 86% of nights, the highest monthly figure for any place in our data.
The catch: Alta is smaller than Tromsø, with fewer flights and fewer tours, and it's about two hours' drive from us here in Hammerfest, over a mountain pass that closes in bad weather. Plenty of people base themselves in Tromsø and still do well, especially if they're willing to drive inland on cloudy nights.
Which aurora destination is the cloudiest?
Reykjavík, in most months. Iceland was the cloudiest of the 12 in January and February, tied with Lofoten in March, and never better than 58% (in December). Fairbanks was the cloudiest in September, at 30%: early autumn in interior Alaska is often overcast.
That doesn't make Iceland a bad choice. You can drive away from the cloud in Iceland, and the island's weather changes quickly. But if you're there for three nights in February, the odds are worse than in Lapland or northern Norway.
How reliable are these numbers?
They're good for comparing places, and rougher as a promise.
- They count low cloud only. Airport sensors don't report cloud above 1,500 m, so thin high cloud that dims the aurora can still be there on a "clear" night.
- An airport can be cloudier or clearer than the hill you stand on 30 km away.
- They say nothing about aurora activity. Clear skies with a quiet aurora still happen. For the three places where we have camera records, see Abisko vs Tromsø.
For the whole season in one number per place, see do clouds stop the northern lights? Each destination page has its own month-by-month figures, for example Alta, Levi and Yellowknife.
What about darkness?
In the far north, the months on either side of winter are short on night. Mid-September gives about 6 dark hours in Tromsø, Abisko or Rovaniemi, against 14–16 from November to January. Fewer dark hours means fewer chances in each night, whatever the sky does. The best-balanced months, with long nights and steadier weather, are usually January and February.
Once you're there, the cloud forecast for tonight matters more than any average. Aurora's Tonight number combines it with the solar wind, Kp, darkness and the moon for your spot. A forecast, not a guarantee.
