The best time to see the northern lights is from late September to late March, between about 22:00 and 02:00, in a week near new moon. Within that window, February and March are the safest bet for most destinations: nights are still long, the March equinox gives a small geomagnetic boost, and in our cloud data inland Lapland and northern Canada clear up noticeably by March.
Below is the reasoning, then the 2026–27 season month by month with new-moon dates and cloud numbers for popular places. If you want the general planning logic (how many nights, tours versus camps) read how many nights to plan first.
The short answer
- Season: late September to late March in the Arctic (late August to mid-April at the edges). The aurora is there all year; darkness is not.
- Hours: SWPC says the best aurora is usually within an hour or two of local midnight. Strong storms can start at dusk.
- Weeks: the week around new moon, or nights when the Moon sets early or rises late.
- Months: February–March first, September–early October second, November–January for the longest nights if you accept more cloud and cold.
- Nights: at least three, ideally four or five. Weather decides more than the Sun does.
Why the season runs September to March
Near the Arctic Circle the sky stops getting dark from roughly May to early August. Even at midnight the Sun is too close to the horizon, and faint aurora needs the Sun about 16° below it. The practical season therefore opens in late August or September, when nights lengthen quickly, and closes in late March or April.
The destination boards agree within a few weeks: Visit Tromsø gives late August to early April, the Swedish Tourist Association gives late August to April for Abisko, Explore Fairbanks gives 21 August to 21 April, and Destination Canada splits Yellowknife into an autumn season (mid-August to late September) and a winter season (mid-November to early April). You will find the details for each place in our destination guides.
Why the equinoxes help
Geomagnetic activity is statistically higher around the March and September equinoxes. The leading explanation, the Russell–McPherron effect (Russell & McPherron, 1973), is geometric: around the equinoxes the tilt of Earth's magnetic axis relative to the solar wind makes a southward magnetic field in the wind more effective at coupling energy into the magnetosphere.
It is a tilt in the odds, not a switch. A quiet equinox week still happens, and some of the strongest storms on record came in May, August or November. Treat the equinox as a tie-breaker when other factors are equal.
Cloud matters more than the calendar
Our destination pages show the share of the night sky that is cloud-free on average, month by month, from 2017–2025 model data (Open-Meteo, ECMWF IFS and ERA5). These numbers are "100 minus mean night-time cloud cover", so 30% means that on an average night about 30% of the sky is clear. Higher is better.
| Place | Sep | Oct | Nov | Dec | Jan | Feb | Mar |
|---|---|---|---|---|---|---|---|
| Tromsø | 23 | 17 | 12 | 11 | 14 | 15 | 18 |
| Abisko | 18 | 10 | 9 | 9 | 10 | 14 | 17 |
| Rovaniemi | 28 | 20 | 14 | 11 | 17 | 20 | 32 |
| Levi | 26 | 22 | 16 | 11 | 18 | 20 | 32 |
| Reykjavík | 25 | 24 | 25 | 28 | 22 | 18 | 25 |
| Fairbanks | 25 | 26 | 30 | 33 | 40 | 36 | 40 |
| Yellowknife | 40 | 26 | 22 | 29 | 32 | 41 | 46 |
| Isle of Skye | 26 | 21 | 22 | 19 | 21 | 24 | 27 |
Three patterns stand out. Nordic sites are clearest at the edges of the season (September and March) and gloomiest in November–December. Yellowknife has a cloudy gap in October–November while the lakes freeze, which Destination Canada also warns about. Iceland is roughly flat all winter; a separate analysis of Icelandic Met Office station data by Guide to Iceland found September and October the cloudiest months nationwide, so do not read too much into small differences. The model grid is about 9 km, so it smooths out local effects such as Abisko's rain shadow; we discuss that in where to see the northern lights.
Moon phases for the 2026–27 season
A bright moon washes out faint aurora but cannot hide a strong display, and moonlit snow can make better photos. If your dates are flexible, aim for the week either side of new moon. Dates are in UTC and may fall a day earlier or later locally.
| Month | New moon | Full moon |
|---|---|---|
| October 2026 | 10 Oct (passed) | 26 Oct |
| November 2026 | 9 Nov | 24 Nov |
| December 2026 | 9 Dec | 24 Dec |
| January 2027 | 7 Jan | 22 Jan |
| February 2027 | 6 Feb | 20 Feb |
| March 2027 | 8 Mar | 22 Mar |
| April 2027 | 7 Apr | 20 Apr |
We computed these with standard astronomical formulas; our trip planner combines them with darkness and cloud climate to score each possible start date.
Month by month, 2026–27
Late October 2026
The full moon on 26 October makes the last week of the month bright. Europe turns its clocks back on 25 October, so the evening darkness arrives an hour earlier by the clock. Expect long enough nights almost everywhere above 60°N, but this is a cloudy month in Lapland and around Yellowknife. Good for: Iceland, Fairbanks, autumn-colour trips with an aurora bonus.
November 2026
New moon on 9 November gives a good dark window around 5–14 November. North America turns its clocks back on 1 November. Polar night begins in Tromsø around 27 November (Visit Tromsø). This is the cloudiest stretch for the Norwegian coast and Finnish Lapland in our data, and Yellowknife's freeze-up season. Fairbanks starts to improve.
December 2026
New moon on 9 December, full moon on 24 December. The longest nights of the year, the solstice on 21 December, and Christmas demand pushing prices up in Lapland. Cloudiest month for most Nordic sites in our table. Kiruna has no sunrise from early December to early January (Visit Sweden). Choose December for atmosphere and long darkness, not for the best odds.
January 2027
New moon on 7 January. Fairbanks reaches its clearest level of the winter in our data (about 40%). Very cold: a typical January in Yellowknife averages around −28 °C, and Fairbanks can drop to −40 °C in cold snaps. Polar night ends in Tromsø around 15 January, though the mountains hide the Sun for longer.
February 2027
New moon on 6 February, full moon on 20 February. Our pick for a first trip if you go early in the month: still long nights, rising daylight for sightseeing, and clearer skies in Yellowknife (about 41%) and Lapland than in December. The Icelandic Met Office analysis also rates February well for north Iceland around Mývatn.
March 2027
New moon on 8 March, the equinox on 20 March, full moon on 22 March. The geomagnetic boost of the equinox meets the clearest skies of the season in our data for Rovaniemi and Levi (about 32%), Kiruna (33%), Yellowknife (46%) and Fairbanks (40%). Days are long and milder, nights still dark from about 21:00 at 68°N. The US changes its clocks on 14 March and Europe on 28 March, which shifts darkness an hour later by the clock. If you can travel only once, the first half of March is hard to beat.
April 2027
New moon on 7 April. The season closes quickly as nights shorten. Fairbanks (until 21 April by Explore Fairbanks's definition) and Yellowknife can still deliver; in northern Norway the sky is too bright after mid-April.
The best time of night
SWPC's viewing tips put the best aurora within an hour or two of local midnight. That "midnight" is magnetic and solar, not the clock. Iceland keeps UTC all year although Reykjavík sits about 22° west, so solar midnight there falls around 01:30 by the clock, and a 23:00–03:00 vigil often works better than 21:00–01:00.
Activity usually comes in bursts of 20–40 minutes with quiet spells between. The single most effective thing you can do is stay out longer, or set an alert so you can wait indoors.
What the solar cycle means for this winter
Solar Cycle 25 reached its maximum in October 2024, with a smoothed sunspot number of about 161 (SIDC). NOAA's prediction, as published in October 2026, keeps the smoothed number close to 88 through the 2026–27 winter before it falls to about 35 by late 2028. Storms remain frequent enough that the Arctic sees aurora on most clear nights, and big storms still happen in the declining phase. We explain the outlook in Solar Cycle 25 after the maximum.
How to pick your dates
- Choose the region first by cloud climate, using our ranking of 21 places.
- Prefer February to mid-March, or September if you want milder weather.
- Put your nights in the new-moon week if you can; do not cancel over a full moon if you cannot.
- Stay at least four nights and build in one night of flexibility to drive away from cloud.
- Check the planner for your destination, then follow the forecast routine on the night.
Frequently asked questions
What is the best month to see the northern lights?
For most of the Arctic, February and March. Nights are still long, it is less cold than in midwinter, the March equinox gives a small geomagnetic boost, and in our 2017–2025 data inland Lapland and Yellowknife are noticeably clearer in March than in November or December. September is the best autumn alternative.
Can you see the northern lights in October?
Yes. From late September the Arctic has several hours of darkness, and the equinox period is geomagnetically favourable. The catch is weather: October is one of the cloudiest months in Lapland, Yellowknife (while the lakes freeze) and Iceland.
Can you see the northern lights in summer?
Not in the Arctic. The aurora happens year-round, but from about May to early August the sky never gets dark enough near the Arctic Circle. Summer is the season for the southern lights in Tasmania and New Zealand instead.
What time of night are the northern lights most visible?
NOAA SWPC says the best aurora is usually within an hour or two of local midnight, roughly 22:00 to 02:00. In places whose clocks run ahead of the Sun, such as Iceland, the peak tends to come later by the clock. During storms it can start at dusk.
Is 2026–27 still a good season for the northern lights?
Yes. Solar Cycle 25 peaked in October 2024 and activity is declining slowly, but NOAA's prediction keeps the smoothed sunspot number near 88 through winter 2026–27, and big storms still happen in the declining phase. Under the auroral oval the solar cycle matters far less than the weather.