Yesterday, Saturday, we arrived in Nurnburg and were soon dodging a 1200 person protest in the old town. The 1200 statistic came from today’s news online. There were many police. Tourist information told us this was happening every Saturday now. When planning, you might want to avoid Saturday or check with tourist information. Today, Sunday, has been very pleasant.
I guess you mean Nürnberg / Nuremberg? Or do you Nürburg?
If Nuremberg: the demonstration was directed against a recent court ruling (article about protest demonstration). It is therefore unlikely that this demonstration will continue for a longer time.