I've heard February/March is already 'last call', so you have to be quick (but I may be wrong).
For me it's similar: I'd like to sign up my 4 yr. old daughter to a
kindergarten in Munich, and still can't find enough time to go there and ask, fill forms and so on.
My lack of knowledge of German doesn't help, either. Of course I'm talking about state
kindergartens, not private ones.
Let me know how it worked for you...
Greg