After the recent rains, the anticyclone arrives: sunshine and mild weather.

The week begins with the last of the unstable weather, but from Wednesday, high pressure will bring sunshine and a significant rise in temperatures. Today, Monday, October 12th, fast-moving morning thunderstorms are forecast for the Northeast, which will then move over central Adriatic regions, Umbria, southern Lazio, and much of the South in the afternoon. In Central and Northern Italy, the weather is already more stable and sunny.

From Tuesday, October 13th, the situation will improve everywhere, with the high-pressure system expanding from Western Europe. Wednesday, October 14th is expected to bring predominantly fine weather to almost the entire Peninsula, with clear or slightly cloudy skies. Maximum temperatures will easily climb back above 22-23°C, peaking at 25°C in the central regions and Sardinia, typical of the so-called 'Roman October'.

The arrival of the high-pressure system follows a period of instability that affected several Italian regions, especially in the South. An anticyclone is an area of high atmospheric pressure that, by expanding, pushes away rain-bearing disturbances and promotes stable weather conditions, clear skies, and mild temperatures. This phenomenon is particularly characteristic of October in Central Italy, where it is called the 'ottobrata'.

The weather evolution for the week shows a clear shift: after a quick unstable pulse of northern origin that brought the last thunderstorms, the incoming high pressure from the western quadrants gradually takes control of the situation. The improvement begins from the Central-North as early as Monday, extending to the South from Tuesday. The stabilization also involves an increase in the temperature range between night and day, with cool mornings and mild afternoons. The winds, initially strong from the north especially in the South, will tend to weaken as the anticyclone strengthens.