Veðurstofa Íslands, the Icelandic Met Office, publishes an aurora forecast that combines geomagnetic activity (the Kp index, on a scale of 0 to 9) with expected cloud cover, which determines what you can actually see.
Kp index
3
Visibility
Moderate
Cloud cover
Cloud cover forecast is displayed as animated maps at en.vedur.is/weather/forecasts/aurora/ — check the cloud cover images for your region.
The spectacle of Aurora Borealis requires dark and partly clear skies.
| Date | Kp index | Visibility |
|---|---|---|
| 2026-07-21 | 3 | Moderate |
| 2026-07-22 | 4 | Moderate |
| 2026-07-23 | 3 | Moderate |
| 2026-07-24 | 2 | Poor |
| 2026-07-25 | 2 | Poor |
| 2026-07-26 | 2 | Poor |
| 2026-07-27 | 2 | Poor |
| 2026-07-28 | 2 | Poor |
| 2026-07-29 | 2 | Poor |
| 2026-07-30 | 2 | Poor |
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