One can try to describe Venice, but honestly it deserves to be experienced in person to be understood, to be felt, and to be appreciated. The city itself is a living, breathing, historical phenomenon. Every time I travel there I have to blink several times to make sure I’m not on a Hollywood movie set.
I’ve experienced this floating city made up of 118 islands during all times of the year, but by far my favorite is October through April, the off-season. Why would you consider fall, winter, or early spring in Venice? It’s less crowded, less expensive, less lines for museums and events, less heat, and no mosquitoes! It’s also much easier to get restaurant reservations and tickets to shows and recitals.