Weather in Florence for September 2025

Florence, Italy, in September offers a delightful transition from the heat of summer to the cooler, more comfortable days of autumn. At the beginning of the month, temperatures typically range from 16° in the early morning to around 28° in the afternoon.

The skies are generally clear, with plenty of sunshine, making it an ideal time for sightseeing and outdoor activities. Humidity levels are moderate, and there is a slight chance of occasional rain showers, but they are usually brief and do not disrupt plans significantly.

As the month progresses, the weather begins to cool down gradually. By the end of September, morning temperatures can drop to around 12°, while afternoon highs are more likely to be around 24°.

The days are still mostly sunny, but the frequency of rain showers increases slightly, providing a refreshing break from the sun. The evenings become cooler, making it pleasant for evening strolls along the Arno River or dining al fresco in one of Florence's charming piazzas.

Overall, September is a wonderful time to visit Florence, as the weather is generally mild and conducive to exploring the city's rich history, art, and culture. The transition from summer to autumn brings a unique charm to the city, enhancing its already captivating atmosphere.