weather

There is no answer !! I mean weather is weather. But our preference for travel is mid Sep to Nov 1. The chances are better weather in that period is better but have seen heavy rains in that time also. You roll the dice.

I realize weather can always vary but "Temp-wise" is what I am most interested in. I can check historical data i guess. Looking for typical months where high temps are in the upper 70-mid 80s. Visiting Milan, Lake Como, Florence, Tuscany, Venice. Cinque Terra, Rome.

Then check historical data. That is the best you can do. Remember, to have an average, you have to have extremes.

September

Thanks to Frank and Joyce for your input...

May-June or September.

Thank you David.

Just had beautiful weather and no rain in late June -- this was in N. Italy, Milan to the Dolomites and Lakes.

You can get surprise heat even in early June, but late April-June or September-October are my favorite times. Harvest festivals in the fall.