A few years back, I visited Iceland. One night, we took a tour about 90 minutes outside Reykjavik (to avoid light pollution) to try to see the Northern Lights. This was in February — my most impactful memory was how cold it was.
We did see the lights, but what you see with your naked eye is much more muted than what high end cameras are able to capture.
Great experience though, and I highly recommend Iceland as a travel destination.