R.E.M. have just added an indoors gig in Munich in the Olympiahalle as the final gig on their European Tour.
If you would prefer to see them in the fresh air then they are also doing a number of outdoor concerts during the summer all over germany (incl. Würzburg in Franken)

Tickets from München Ticket - https://www.muenchenticket.de/vorstellung.jsp?id=135723
also from eventim - http://www.eventim.de