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3-Day Kp-Forecast

Low (0-3)
Moderate (4)
High (5+)

Northern Lights forecast and real-time aurora map – RepoTracker

RepoTracker shows the Northern Lights in real time in Finland and the Nordic countries. The map shows where the Northern Lights are visible right now and in the coming hours.

How to track Auroras on Mobile

Explore the Map: Tap any location on the map to see a detailed real-time aurora and cloud cover forecast for that spot.

Quick Tools (⚙️): Tap the settings icon on the right to open your toolkit:

  • 🧭 Locate: Find auroras at your current position.
  • 📊 Forecast: View the 3-day geomagnetic (Kp) outlook.
  • Show Places: Use the 'Show Places' slider to toggle location markers on and off.

Stay Connected (📱): Tap the phone icon to follow our real-time updates on Instagram and TikTok.

Northern Lights forecast – PC Instructions

Click anywhere on the map or use the "Can i see the Northern Lights" -button to see the aurora forecast for that location.
Note: Cloud cover can affect visibility even if aurora activity is strong.

How does the RepoTracker forecast work?

RepoTracker combines geomagnetic measurements, solar wind speed, the Kp index, and cloud cover data into one clear view.

How to read the aurora map

The colors indicate the probability: red (weak), yellow/orange (good chance), and green (strong activity).

Best time to see the Northern Lights

The Northern Lights occur most often from September to March, especially between 9 p.m. and 2 a.m.