Temperature drop and rain in the South, then a sunny weekend with a new rise.

A mass of cool air of north European origin is crossing Italy, leading to a drop in temperatures and unsettled weather conditions in the South. Minimum temperatures will settle around 15°C in Central-Northern regions, while maximum temperatures will hardly exceed 25°C in the North. The passage is accompanied by a disturbed system in the southern regions with showers and thunderstorms, and an intensification of Bora and Grecale winds over the Adriatic and central-southern sectors.

As early as Saturday, a general return to sunny conditions will be observed, with residual morning showers confined to Sicily. On Sunday, high pressure will expand over all regions, bringing stable and sunny weather. With the start of the new week, a subtropical anticyclonic ridge will cause a temperature rise of up to +5°C above average in Northern Italy, with local peaks up to 31°C in Sardinia.

The end of September 2026 is characterized by frequent temperature variations typical of transitional periods between summer and autumn. The month stood out due to the presence of a robust subtropical anticyclonic structure, which brought late-summer conditions with few cloud systems (only 4 disturbances in September). This caused waves of anomalous heat, with temperatures up to 6-7 degrees above average, as recorded in recent days.

The current meteorological event is triggered by the rapid passage of a cold front (the 4th disturbance of September) descending from Northern Europe. However, this attempt to establish more autumnal weather is destined to be short-lived. Already by the end of Friday, the disturbance will move away toward the Aegean Basin, making way for the return of high pressure. The rapid cycle between brief cool and rainy phases and prolonged warm, stable periods has become a feature of this late season, influenced by the persistent northward expansion of subtropical anticyclones.