Warm and not too crowded periods from April to June and from late September to October are the best time to visit Rome. Foodies will be in a total delight, as spring offers unbelievable Fiori di Zucca and autumn—famous Castagnaccio. Summer is not summer without tasty gelato, as June to August time shows torturous heat and humidity with a lot of shops and hotels closed in the last summer weeks. Christian holidays of Christmas and Easter are usually busy with people keen to visit Vatican and St. Peter's Cathedral. During winter, most Roman attractions go on short hours, and many beach destinations turn into ghost towns. Even though it gets much colder, you can always observe incredible winter sunsets and take advantage of shorter queues to Rome's major attractions.