# Aurora (by Sterk Vekst) > Northern lights forecasts and measured aurora history for twelve destinations. One forecast a day per destination, plus month-by-month history: camera-measured aurora nights (Tromsø, Abisko, Kiruna) and airport nights free of low cloud (2016–26), and a calendar of dark, moon-free nights. Live updates and alerts are in the iOS app. Cite numbers with their winters and source. A forecast, not a guarantee. Moon on 2026-10-30: Waning gibbous, 76% lit. ## Destinations - [Tromsø northern lights forecast](https://aurora.report/tromso/): Over 3 winters (2023–26), the all-sky camera at Tromsø saw clearly visible aurora on 32% of camera-usable nights from September to March (552 nights). Data: https://aurora.report/data/tromso.json - [Abisko northern lights forecast](https://aurora.report/abisko/): In winter 2025–26, the all-sky camera at Abisko saw clearly visible aurora on 60% of camera-usable nights from September to March (181 nights). Data: https://aurora.report/data/abisko.json - [Kiruna northern lights forecast](https://aurora.report/kiruna/): Over 3 winters (2023–26), the all-sky camera at Kiruna saw clearly visible aurora on 46% of camera-usable nights from September to March (485 nights). Data: https://aurora.report/data/kiruna.json - [Alta northern lights forecast](https://aurora.report/alta/): At Alta Airport, at least two dark hours were free of low cloud on 73% of September–March nights over 10 winters (2016–26); December was the clearest month (86%). Data: https://aurora.report/data/alta.json - [Lofoten northern lights forecast](https://aurora.report/lofoten/): At Harstad/Narvik Airport, Evenes (about 90 km), at least two dark hours were free of low cloud on 56% of September–March nights over 10 winters (2016–26); December was the clearest month (66%). Data: https://aurora.report/data/lofoten.json - [Kirkenes northern lights forecast](https://aurora.report/kirkenes/): At Kirkenes Airport, at least two dark hours were free of low cloud on 60% of September–March nights over 10 winters (2016–26); January was the clearest month (74%). Data: https://aurora.report/data/kirkenes.json - [Rovaniemi northern lights forecast](https://aurora.report/rovaniemi/): At Rovaniemi Airport, at least two dark hours were free of low cloud on 52% of September–March nights over 10 winters (2016–26); March was the clearest month (65%). Data: https://aurora.report/data/rovaniemi.json - [Levi northern lights forecast](https://aurora.report/levi/): At Kittilä Airport, at least two dark hours were free of low cloud on 58% of September–March nights over 10 winters (2016–26); March was the clearest month (74%). Data: https://aurora.report/data/levi.json - [Saariselkä northern lights forecast](https://aurora.report/saariselka/): At Ivalo Airport, at least two dark hours were free of low cloud on 58% of September–March nights over 10 winters (2016–26); January was the clearest month (69%). Data: https://aurora.report/data/saariselka.json - [Iceland northern lights forecast](https://aurora.report/iceland/): At Keflavík Airport, at least two dark hours were free of low cloud on 48% of September–March nights over 10 winters (2016–26); December was the clearest month (58%). Data: https://aurora.report/data/iceland.json - [Fairbanks northern lights forecast](https://aurora.report/fairbanks/): At Fairbanks Airport, at least two dark hours were free of low cloud on 48% of September–March nights over 10 winters (2016–26); January was the clearest month (62%). Data: https://aurora.report/data/fairbanks.json - [Yellowknife northern lights forecast](https://aurora.report/yellowknife/): At Yellowknife Airport, at least two dark hours were free of low cloud on 58% of September–March nights over 10 winters (2016–26); March was the clearest month (74%). Data: https://aurora.report/data/yellowknife.json ## Guides - [Abisko vs Tromsø for the northern lights: what camera and cloud data say](https://aurora.report/blog/abisko-vs-tromso-northern-lights/): For seeing the aurora itself, inland Swedish Lapland beat coastal Tromsø in our data. All-sky cameras recorded clearly visible aurora on 46% of nights at Kiruna and 60% at Abisko, against 32% at Tromsø. Tromsø wins on access, the city and tours. - [Best month for the northern lights in Tromsø, from camera and weather data](https://aurora.report/blog/best-month-northern-lights-tromso/): From November to January, Tromsø has the longest darkness and, in ten winters of airport data, the most nights with a usable sky. January stood out on the all-sky camera, with clearly visible aurora on 47% of nights in the 2023–26 winters. September to mid-April works, with more cloud and shorter nights at the edges. - [Do clouds stop the northern lights? Ten winters of airport cloud data](https://aurora.report/blog/do-clouds-stop-the-northern-lights/): Thick low cloud blocks the northern lights completely, and it is the most common reason travellers miss them. In ten winters of airport reports, the clearest of our 12 destinations had a usable dark sky on about 7 nights in 10, the cloudiest on about 5 in 10. - [How accurate are aurora forecasts? We checked ours against all-sky cameras](https://aurora.report/blog/how-accurate-are-aurora-forecasts/): We checked our nightly aurora ratings against all-sky cameras in northern Norway and Sweden over three winters. On nights rated Excellent, clearly visible aurora was recorded 79% of the time; on nights rated Low, 15%. - [How many nights do you need to see the northern lights? What ten winters of data say](https://aurora.report/blog/how-many-nights-to-see-the-northern-lights/): Plan at least four or five nights. In ten winters of cloud data, five nights in a row gave at least one usable dark sky 88–98% of the time, depending on the destination. With five nights in Tromsø, an all-sky camera recorded clearly visible aurora at least once 79% of the time; in Kiruna, 92%. - [Why the Kp index can't tell you if you'll see the northern lights](https://aurora.report/blog/why-the-kp-index-is-not-enough/): Kp measures how disturbed the Earth's magnetic field is, not whether you'll see anything. On nights a Kp-style forecast called good, low cloud covered the sky all night 41% of the time, the same as on all nights. In the far north, clouds and darkness decide more than Kp. - [Best time to see the northern lights: month by month, from ten winters of data](https://aurora.report/blog/best-time-to-see-the-northern-lights/): The best months are the ones that are both dark and clear. Here is when aurora cameras saw it most often, and when low cloud was rarest at twelve destinations, from ten winters of airport reports. - [Does a full moon ruin the northern lights? What our camera data shows](https://aurora.report/blog/full-moon-and-the-northern-lights/): A full moon does not ruin the northern lights, but it hides the faint ones. When we checked moonlit camera frames by eye, about half of the aurora the cameras recorded was still worth seeing for a person. ## About - [How we know](https://aurora.report/methodology/): sources, definitions and limits - [Aurora: Forecast & Alerts on the App Store](https://apps.apple.com/app/id6816831477) Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Credit "Aurora by Sterk Vekst" with a link.