The city of Cortona has a warm climate. The weather is pleasant. The best times to visit Cortona are spring and summer. April, May and June are ideal for a trip there. Festivals take place in the warmer months and wine is made in warm weather too.
Winters get cold in Cortona with the mercury dipping to 8 degrees centigrade in January. If you do choose to visit Cortona in December or January, carry heavy woollens because it can get really cold in winter, especially at night.