Finnmark, Norway · Winter 2026–27
Northern Lights in Alta
Alta sits at 70.0° north, inside the band between about 60° and 75° where NOAA says the aurora can be seen on more than half of the nights in a year. What decides your chances is darkness and cloud, so this guide shows both month by month, with flights and places to stay.
- Darkness on 15 Dec
- 16.2 h
- Cloud cover Dec–Feb
- 80.3%
- Avg January temp
- -10°C
- Nearest airport
- ALF 3 km
When is it dark enough in Alta?
NOAA notes that the aurora can only be seen when the sky is dark and clear, and that the midnight sun rules out summer viewing at auroral latitudes. In Alta the sun sinks more than 12° below the horizon on the 15th of the month from September to March. From April to August it never does, so the sky stays too light.
Darkness peaks around the December solstice at about 16.2 hours, and there are about 52 days a year when the sun does not rise at all. September and March still give 5.2 and 8.1 hours of darkness on the 15th, with milder temperatures than midwinter.
Hours with the sun more than 12° below the horizon on the 15th of each month (2026), calculated with the NOAA solar position equations for 69.98°, 23.30°. Aurora background: NOAA Space Weather Prediction Center.
Cloud cover and temperature by month
Across the dark season the least cloudy month is January (79%), then February (79%). December to February averages 80.3% cloud cover, number 7 of the 9 destinations in this guide.
| Month | Darkness (15th) | Cloud cover | Avg temperature |
|---|---|---|---|
| Jan | 15.2 h | 79% | -10.0°C / 14°F |
| Feb | 12.1 h | 79% | -9.8°C / 14°F |
| Mar | 8.1 h | 79% | -7.0°C / 19°F |
| Apr | 0 h | 76% | -3.0°C / 27°F |
| May | 0 h | 77% | 1.6°C / 35°F |
| Jun | 0 h | 81% | 7.0°C / 45°F |
| Jul | 0 h | 78% | 11.2°C / 52°F |
| Aug | 0 h | 78% | 9.5°C / 49°F |
| Sep | 5.2 h | 81% | 5.2°C / 41°F |
| Oct | 10.3 h | 84% | -1.0°C / 30°F |
| Nov | 14.1 h | 81% | -5.6°C / 22°F |
| Dec | 16.2 h | 83% | -7.9°C / 18°F |
Cloud cover and temperature: NASA Langley Research Center POWER Project, Climatology API, 2001–2020 averages over a grid cell of roughly 50 km. Cloud cover is a day-and-night average, not a forecast.
Where to stay in Alta
Staying a few nights gives more chances of a clear, dark sky. Compare hotels and cabins in Alta for the dark-season months.
Alta hotels on Expedia
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Flying to Alta
The nearest airports on our route maps, plus the nearest airport that at least five of those airlines fly to. Distances are straight-line.
Tromsø (TOS) · 171 km
13 airlines fly here on our route maps:
Northern lights in Alta: questions
When can you see the northern lights in Alta?
The aurora needs a dark, clear sky. In Alta the sun goes more than 12° below the horizon on the 15th of each month from September to March; from April to August it does not, so the sky never gets properly dark.
How dark is Alta in winter?
On 15 December there are about 16.2 hours with the sun more than 12° below the horizon. The sun does not rise at all on about 52 days a year.
Which month has the clearest skies in Alta?
In NASA's 2001–2020 averages for the area, the least cloudy dark-season month is January (79% cloud cover). December to February averages 80.3%, which ranks 7 of 9 on this guide's list of northern lights destinations.
How cold is Alta in January?
The average January temperature in NASA's 2001–2020 data for the area is -10°C (14°F). This is a regional average, so towns can be warmer or colder.
What is the nearest airport to Alta?
Alta (ALF) is 3 km away in a straight line, with 2 airlines on AirConnect's route maps.
Compare darkness and clear skies across all northern lights destinations →