During the earlier times it was considered that the month of October in Italy is the beginning of slow season, since the prices use to fall and a large number of tourists used to fly back. Those days have become history in the superior tourist towns. Both April and October are considered as one of busiest ones in Italy and one should not assume that these two months there will be quiet; on arriving you will be surprised to know that tourists are still present during that time.
June or July will have more tourists compared to October, however crowds are attracted to the pleasant weather of the country and this weather is throughout the country during the month of October, relatively the prices for hotels and for flights drop, so it becomes a perfect combination of great weather and inexpensive prices. This is one of the reasons it's getting more favorable to visit Italy during the month of October.
Weather in October
Depending on the interests and likings, visitors can choose their destinations for travel in Italy in October. While October is Italy is mainly famous for its many amazing food festivals, those who are not particularly interested in these festivals can visit central Italy or southern Italy, especially Sicily in October, since these would still be a bit warmer.The beaches in Sicily offer many good options for those who love water sports or just want to spend a day swimming. Northern regions would be much cooler, though there wouldn't be enough snow in order to enjoy skiing, so it's best to not visit Piedmont or the Dolomites in October. Central Italy is a very good option: Perugia, Todi, Umbertide, Cortona.