Arezzo sits in central Italy’s hilly Apennine terrain, where a Mediterranean-to-continental transitional climate produces its heaviest rain in autumn, sometimes concentrated into short, intense, and highly localized storms.
In the upper Arno valley in Tuscany, the city’s hillier terrain means rain reaches the river system faster than in the flatter areas downstream near Florence. The steep, closely-spaced valleys typical of this part of Italy mean small rivers can rise dramatically within hours, a pattern that has produced serious floods here in past decades, and radar remains one of the best tools for anticipating it. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map