Someone suppose that the best summer period for holidays is the summer but this rule usually valid, is not confirmed for Sicily.
At this link you will find the historic temperatures in our area, it is clear that the weather in the fall or spring is already perfect, especially if you prefer quiet.
In winter you can find a mild climate, ideal for visiting museums, monuments and archaeological sites.
The weather is very lenient in any season.
During the summer the temperatures are ideal for holidays on the beach. For millennia our island has attracted outsiders (not only for the weather …), just you.
If you are lucky enough to spend the winter in Sicily, maybe this app can help you: