Aurora: Forecast & Alerts

Know which nights are worth it.

Aurora gives you one clear answer each evening: tonight's chance of seeing the northern lights where you are, how sure the forecast is, and the best hours to look up.

TONIGHT
• Tonight's chance in percent, with a confidence level
• A sky that shows your actual night: aurora strength, cloud and the real moon
• Best viewing hours: the clearest dark hours at your location, and when a bright moon rises or sets
• Why: clouds, darkness, moonlight and space weather, in plain words
• Next chance: on weak nights, see which night looks better

PLAN AHEAD
• Three nights ahead, with tonight's cloud cover hour by hour
• A 7-night outlook of darkness and moonlight
• Any destination: check Tromsø, Abisko, Iceland or Lapland before you go

ALERTS
• A planning alert on afternoons when tonight looks genuinely good
• Choose Quiet, Balanced or Max chances, from roughly 5 to 9 alerts a month in an active winter
• An optional heads-up when conditions turn strong during the night, and quiet hours when you want them

BUILT FOR REAL CONDITIONS
Aurora combines space weather from NOAA and GFZ with MET Norway's cloud forecasts for your exact spot, instead of relying on the Kp index alone. We checked every call against all-sky cameras in northern Scandinavia, and judged moonlit nights by eye. Last winter, when Aurora said go, the aurora was visible 9 times out of 10. Over three winters of backtests, nights rated Excellent had clearly visible aurora 79% of the time.

A forecast, not a guarantee: the aurora is unpredictable and conditions can change within minutes.

Your location is only used approximately (about 5 km) and only while the app is open. No account, no ads.

SUBSCRIPTION
Aurora is available with a weekly, monthly or yearly subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your Apple Account settings.

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