Overview

• Unstable Atlantic flows on June 3 and 4 are expected to ignite violent storm cells over Piedmont, Lombardy, Veneto and Friuli Venezia Giulia.
• Hailstones up to 2–3 cm in diameter and wind gusts exceeding 60 km/h are forecast across Alpine regions and adjacent plains.
• From June 5, a powerful African anticyclone will establish stable, sunny weather and drive temperatures above 35 °C in northern and central Italy, with peaks over 40 °C in Sardinia.
• Southern Italy is projected to experience a drier summer, and the north faces greater variability with alternating stable and unstable weather episodes.
• Summer outlook hinges on two scenarios: a 60% chance of dominant high pressure fostering prolonged heat and a 40% chance of more frequent Atlantic disturbances.