Our itinerary in chronological orrder is; Naples/Almalfi Coast working our way up Italy Hill Towns, Cinque Terre, Lake Como, through Austria, Czech Republic, Romantic Road, Southern Germany, Switzerland, Alsace Lorraine, Rhine, Mosel, Paris. The three variables are WEATHER (Prague is pretty far up North and near the beginning of our trip), Hotel Availability and Cost (better earlier in the season), and Flight Costs (cheaper earlier). Our thoughts are between leaving April 15th or closer to May 1st. Would those Northern destinations be a bit cold/rainy, Switzerland all snowed in, days shorter if we left at the earlier date. Would good cheap hotels be more difficult to find and sites harder to get into if we left later?
Your thoughts?