Northern lights in Rovaniemi in January
58%
of 4-night stays in January saw the northern lights at least once, by our estimate. On any one night the chance was 24%. January is about as good as any month in Rovaniemi; the best was February (59%).
How long to stay in January
Chance of at least one good night, by length of stay, Rovaniemi in January, 2015–2025.
In a typical January, the longest run of nights without a single clear, dark hour was 4 nights. A stay shorter than that can fall entirely into one cloudy spell.
Week by week in January (4-night stay)
- 1 Jan – 7 Jan60%
- 8 Jan – 14 Jan58%
- 15 Jan – 21 Jan59%
- 22 Jan – 28 Jan58%
January in Rovaniemi, year by year
Good nights in January, each year 2015–2025. The typical January had 7 good nights; the worst, 2021, had 0 and the best, 2025, had 15. 2023–2025, around the solar maximum, averaged 11 against 6 before.
A good night = at least one hour that was dark (sun below −12°), mostly clear (NASA POWER cloud data, calibrated on FMI weather stations) and had a Kp index at or above the Kp 2.4 that Rovaniemi needs (GFZ Potsdam). These are estimates, not sightings. How it works
Other destinations in January
Rovaniemi ranks 19th of 21 popular aurora destinations for January (4-night stays, 2015–2025).
Yellowknife
99%Churchill
98%Fairbanks
89%Alta
88%Abisko
85%Kilpisjärvi
84%Aurora tours in Rovaniemi in January
A guide with a car can drive to wherever the clouds break. With cloudy spells of 4 nights in a typical January, that matters here. Booking for your first night leaves the rest of the stay to try again if it's cloudy.
Rovaniemi in January: questions
January is about as good as any month in Rovaniemi; the best was February (59%). In 2015–2025, 58% of 4-night stays in January saw the northern lights at least once, and an average January had 8 good nights (clear, dark and with auroras strong enough) out of 31. These are estimates from NASA cloud records and the Kp index, not sightings.
2 nights gave 39%, 4 nights gave 58%, 7 nights gave 74% odds of at least one good night in January (2015–2025). Even a week gave 74%, so treat the aurora as a bonus. In a typical January, the longest run of nights without a single clear, dark hour was 4 nights. A stay shorter than that can fall entirely into one cloudy spell.
About 14.3 hours a night with the sun more than 12° below the horizon, which is dark enough for faint auroras. Of those, 4.2 hours a night were mostly clear on average, and 17 nights in an average January had at least one clear, dark hour.
Auroras can appear any time it's dark, but activity usually peaks around midnight, roughly 22:00 to 02:00. With about 14.3 hours of darkness a night in January, start looking as soon as it's dark and stay out past midnight if you can. The live forecast shows tonight's best hour.