Venice is beautiful in November when I visited 3 years ago. Less tourists and the waiters treat you better. But be prepared for the smell. It’s like the entire city is so old the rivers are full of sewage. I always thought Napoli (Campania region) and southern Italy were good. (Our family, great granddad’s side is from there :)
There’s a History Channel or maybe Smithsonian channel called Strip the City and they did Venice. My complaint was that they didn’t explain the sewage system. We decided that they didn’t have one. Smelly indeed.