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Northern lights in Inari in January

Inari in January · 2015–2025

82%

of 4-night stays in January saw the northern lights at least once, by our estimate. On any one night the chance was 42%. January is the second-best month in Inari, after March (83%).

13 / 31good nights in an average January: clear, dark and active enough
20nights with a clear, dark hour
14.8 hdarkness a night
Kp 1.4needed here
3 nightslongest cloudy spell, typical January

How long to stay in January

Chance of at least one good night, by length of stay, Inari in January, 2015–2025. 3 nights got you to about 3 in 4.

42%1 night
63%2 nights
75%3 nights
82%4 nights
88%5 nights
92%6 nights
94%7 nights

In a typical January, the longest run of nights without a single clear, dark hour was 3 nights. A stay shorter than that can fall entirely into one cloudy spell.

Week by week in January (4-night stay)

  • 1 Jan – 7 Jan82%
  • 8 Jan – 14 Jan82%
  • 15 Jan – 21 Jan81%
  • 22 Jan – 28 Jan82%
Check your exact dates in the trip odds calculator

January in Inari, year by year

Good nights in January, each year 2015–2025. The typical January had 14 good nights; the worst, 2020, had 7 and the best, 2025, had 21. 2023–2025, around the solar maximum, averaged 19 against 11 before.

201515 nights
201610 nights
201716 nights
20188 nights
20198 nights
20207 nights
20218 nights
202214 nights
202318 nights
202417 nights
202521 nights

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 1.4 that Inari needs (GFZ Potsdam). These are estimates, not sightings. How it works

Aurora tours in Inari in January

A guide with a car can drive to wherever the clouds break. With cloudy spells of 3 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.

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Inari in January: questions

January is the second-best month in Inari, after March (83%). In 2015–2025, 82% of 4-night stays in January saw the northern lights at least once, and an average January had 13 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 63%, 4 nights gave 82%, 7 nights gave 94% odds of at least one good night in January (2015–2025). For about 3-in-4 odds, plan 3 nights or more. In a typical January, the longest run of nights without a single clear, dark hour was 3 nights. A stay shorter than that can fall entirely into one cloudy spell.

About 14.8 hours a night with the sun more than 12° below the horizon, which is dark enough for faint auroras. Of those, 4.5 hours a night were mostly clear on average, and 20 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 14.8 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.