Weather in Città metropolitana di Roma Capitale for September 2025

Rome, Italy in September experiences a delightful transition from the heat of summer to the milder days of autumn. At the beginning of the month, the weather is still quite warm, with daytime temperatures often reaching around 28° and occasionally climbing higher.

The evenings are comfortably cooler, with temperatures dropping to around 18°. The skies are generally clear, and the city enjoys plenty of sunshine, making it an excellent time for sightseeing and outdoor activities.

As September progresses, the temperatures begin to gradually decrease. By mid-month, daytime temperatures typically range between 24° and 26°, while nighttime temperatures can drop to around 16°.

The weather remains predominantly sunny, although there is a slight increase in the likelihood of occasional rain showers. These brief showers usually do not last long and can provide a refreshing break from the warmth.

Towards the end of September, the weather becomes even milder. Daytime temperatures are usually around 22° to 24°, and the evenings can be quite cool, with temperatures falling to around 14°.

The chance of rain increases slightly, but overall, the weather remains pleasant and conducive to exploring the city's historic sites and enjoying outdoor cafes. September in Rome offers a perfect blend of warm days and cool nights, making it an ideal time to visit.