Following is information on September events in Florence.
September 7 - Festa della Rificolona. One of Florence's biggest and most traditional festivals, the Festa della Rificolona is also known as the Festival of the Lanterns. On this day, which commemorates the eve of the birth of the Virgin Mary (though some say it the festival really took off as a local event after Florence's victory over Siena in 1555), young and old take part in a lantern parade, where hundreds of mostly hand-made lanterns are displayed, and there is also a boat parade along the Arno.
The festival is accompanied by a large fair in Piazza Santissima Annunziata featuring street performers, food vendors, music, and more.
Late September - Wine Town Firenze. Two days of wine tastings and wine related events usually take place in Florence during late September, see Wine Town Firenze for dates and events.
Late September during odd-numbered years - Mostra Mercato Internazionale dell'Antiquariato. This extremely prestigious biennial antiques fair typically takes place in late September or early October at Palazzo Corsini, giving serious collectors the chance to view and bid on antiques from around the world. Florence hosts a number of other cultural programs during the time of the fair, including musical performances and galas.
During September - Settembre Sestese. The town of Sesto Fiorentino, on the outskirts of Florence, holds concerts and special events during the month of September.
Continue reading: Florence in October