The function response is not relevant to the query about the weather in Italy in early September. Therefore, I will provide a general overview based on knowledge.

In early September, Italy typically experiences pleasant weather as summer begins to transition into fall. Most regions enjoy warm temperatures, although there can be variations depending on the area.

In northern Italy, cities like Milan and Venice can expect daily highs around 25-28°C (77-82°F) and mild evenings, while the weather remains generally dry. Central Italy, including regions like Tuscany and Rome, sees similar temperatures, with highs often reaching 28-30°C (82-86°F).

Southern Italy, in areas like Naples and Sicily, tends to be warmer, with temperatures sometimes hitting 32°C (90°F) or higher. The coastal areas may have a refreshing sea breeze, making beach outings enjoyable.

Overall, early September is a great time to visit Italy as the peak tourist crowds begin to thin out, and the climate is still warm without the extreme heat that can occur in July and August.