Florence in August is too hot and too crowded to enjoy properly. September fixes the first problem entirely by mid-month and addresses the second problem meaningfully from around the same point. It's one of the better months to visit a city that genuinely rewards slow, careful looking.

Weather

Early September in Florence still pushes 28 to 30°C, which is warm but more manageable than the 35°C of midsummer. By late September temperatures settle around 22 to 24°C, which is close to ideal for the amount of walking the city requires. Pack light layers and proper walking shoes for the stone streets. The Arno looks good in September light, and the hills around Fiesole and San Miniato are comfortable for walking in a way they aren't in July.

Crowds and Prices

The Uffizi in August is an exercise in patience. September changes this. The gallery remains popular and advance booking is still advisable, but the experience of actually moving through the rooms improves. The Accademia for the David gets similarly manageable. Ponte Vecchio goes from photo-impossible to photo-difficult. Hotel prices drop from their summer peak, and the city's restaurants start having tables again without the three-week advance booking requirement.

What's On

Florence's cultural calendar for September includes the annual Pitti Uomo fashion event, which typically takes place in January and June but occasionally has September editions depending on the year. The city's wine harvest events in the surrounding Chianti region happen in September and early October, and day trips to wine estates become genuinely rewarding. The Fiesole Estate festival, which brings outdoor concerts to the Roman amphitheatre above Florence, sometimes extends into early September.

One Thing to Watch

The Uffizi booking system rewards planning. Even in September, popular time slots sell out. Book your Uffizi and Accademia tickets as early as possible, ideally when you book accommodation. First-entry slots are the best value in terms of crowd management: fewer people in the first hour than at any other point in the day.