Was October 23, 2026 a good day for aurora in Frankfurt am Main?
NO
No — the Kp index is 1.67 with no geomagnetic storm, and Frankfurt is overcast anyway.
Why
- Kp now 1.67; peak past 24h only 4.33
- Frankfurt needs roughly Kp 7 for aurora
- 100% cloud cover, 78% chance of showers