Best Northern Lights Apps & Forecast Tools

Overview

A handful of apps and websites help you track the aurora. Here's what's useful and how to read it.

What to look for

Good tools show the KP index, real-time solar wind (Bz and speed), aurora probability, and — crucially — cloud cover. Combine all four for the real picture.

Useful sources

NOAA's Space Weather Prediction Center, the Finnish Meteorological Institute, and various aurora-alert apps. Cloud-cover maps are just as important as KP.

The catch

No app beats a guide who watches live data and drives to clear skies. See our forecast guide.

Frequently Asked Questions

What is the best app to predict the Northern Lights?

Look for apps and sites showing KP index, real-time solar wind and — critically — cloud cover. NOAA's SWPC and the Finnish Meteorological Institute are reliable sources, alongside aurora-alert apps.

Can an app tell me exactly when the aurora will appear?

Only roughly. Short-range forecasts (an hour or two) are fairly reliable; longer forecasts are general. Live cloud cover and a mobile guide matter more than any single prediction.

Do I need an app if I'm on a guided tour?

No — your guide monitors live KP, solar wind and cloud data and drives to the clearest skies, which beats relying on an app.

Best Northern Lights Apps

Overview

What to look for

Useful sources

The catch

Frequently Asked Questions

Skip the Apps, Trust a Guide