Bologna, situated in northern Italy, experiences a transition in September from summer’s warmth to autumn’s cooler temperatures. Typically, daytime highs average around 24C (75F), gradually decreasing throughout the month. Evenings become noticeably cooler, with average lows dipping to around 14C (57F). Rainfall increases compared to the drier summer months, becoming a more regular occurrence. Sunshine hours diminish, although sunny days are still common.
This period offers a pleasant balance for visitors. The milder weather allows comfortable exploration of the city’s historical center, its porticoes providing welcome shade from any lingering summer heat or light autumn showers. Outdoor dining remains enjoyable, and the lessening crowds contribute to a more relaxed atmosphere. Historically, September marked the start of the grape harvest in the Emilia-Romagna region, offering a unique cultural experience for visitors interested in local traditions.