ROME, ITALY / RankWire.AI / – Italy has increased its maximum heat warning to 17 cities on Monday, July 20, following a red alert issued to 14 locations the previous day. The Italian Ministry of Health issued Level 3 heat advisories as the country continues through its third major heatwave of summer 2026. These alerts encompass much of central and southern Italy, including Rome, Naples, and Palermo, indicating health hazards for the entire population, not solely vulnerable groups.
The red list on Sunday featured Bari, Campobasso, Civitavecchia, Florence, Frosinone, Genoa, Latina, Naples, and Palermo. Additionally, Perugia, Pescara, Rieti, Rome, and Viterbo made up the 14 cities. On Monday, the bulletin expanded the alert to include Catania, Messina, and Reggio Calabria, raising the total to 17. No cities were under an orange heat alert on Monday. Ancona, Bolzano, and Cagliari remained at yellow, indicating pre-alert conditions.
Italy’s heat-health monitoring system oversees 27 major cities and provides forecasts for the next 24, 48, and 72 hours. Level 0 signifies no heat risk, while Level 1 signals conditions that could lead to a heatwave. Level 2 warns of dangers to elderly populations, young children, and those with chronic illnesses. Level 3 is issued when prolonged heat can impact otherwise healthy and active individuals, as well as vulnerable groups.
Severe warnings predominantly affecting southern cities
The highest temperatures persisted over central and southern Italy and the surrounding islands on Monday. Forecasts predicted Rome and Florence approaching 36 degrees Celsius, Naples near 34 degrees, and Palermo close to 37 degrees. Parts of Sicily and Sardinia continued to experience temperatures exceeding 40 degrees. Northern regions reported lower temperatures and more unpredictable weather, creating a clear contrast between the intense heat in the south and storm activity in the north.
Italy’s Civil Protection Department issued separate yellow alerts for thunderstorms and rain in parts of Emilia-Romagna, Lombardy, Marche, and Veneto. These notices addressed typical weather risks rather than the heat-health alerts. Consequently, Italy faced two distinct hazards on Monday: dangerous heat in many central and southern cities, and storm risks across several northern and Adriatic areas. Local authorities maintained vigilance over both situations.
Guidance emphasizes protection during peak heat hours
Health officials recommended residents and visitors avoid direct sunlight during the hottest parts of the day, limit strenuous outdoor activities, and stay well-hydrated. They also advised opting for light meals and maintaining cool indoor environments. Particular attention remains vital for seniors, infants, pregnant women, and individuals with heart, lung, or chronic conditions. It is also recommended to check on neighbors or relatives who live alone and may need assistance during extended heat episodes.
The increase from 14 red alerts on Sunday to 17 on Monday reflected new maximum warnings for Catania, Messina, and Reggio Calabria. The remaining 14 cities continued under Level 3 for a second consecutive day. Italy regularly updates its heat warnings throughout the summer, enabling residents and authorities to monitor city-specific health risks. The latest alerts maintained Rome, several regional capitals, and major tourist spots under the country’s highest heat warning as the heatwave persisted.