Who Heat in Italy is looking for will not have to search long, it finds you on its own. It was July 2023 when Italy showed us what extreme summer heat truly means. We were standing in St. Peter's Square in Rome, the thermometer read 43 degrees Celsius, and the stone beneath our feet radiated the heat back like an oven. All around us, people were collapsing in rows: tourists slumping in line, paramedics rushing through the crowd with water bottles and stretchers. We took refuge in St. Peter's Basilica, hoping for cool relief beneath its immense vault. Yet even inside, among marble and centuries of history, the air was oppressive and stifling.
That experience changed our perception of the Italian summer. And it was no isolated incident: as early as late May 2026, the first major heat wave swept across the country on Saharan air, and the Ministry of Health issued red alert warnings for Rome, Florence, Bologna and Turin. Anyone living in Italy or spending an extended period there cannot avoid one topic: the heat. It is high time, then, to take it seriously, not as a frightening scenario, but as a practical art of living that Italians have perfected over generations.
Heat in Italy is not all the same: regional differences
Anyone who speaks of "summer in Italy" is really referring to very different climate zones. In the Po Valley in the north, around Milan, Bologna, and Verona the height of summer brings a muggy, almost tropical heat. The air is still, humidity is high, and temperatures barely drop at night. This "afa," as Italians call the damp sultriness, is for many people harder to endure than dry heat, because the body can barely cool itself through perspiration.
In the south and on the islands, Sicily, Sardinia, Calabria, Puglia, temperatures often climb even higher, though the heat tends to be drier. Here the scirocco, the hot desert wind from Africa, can push temperatures above 45 degrees Celsius. The locals are accustomed to these conditions and have organized their daily lives accordingly.
The major cities are a chapter unto themselves. Rome, Florence and Naples transform into heat islands at the height of summer: asphalt and stone absorb warmth and release it again at night, so that barely any cooling occurs. That is precisely what we experienced in Rome.
Those looking to escape the heat will find relief in the mountains and at the lakes. The foothills of the Alps, the Dolomites, Lake Garda and Lago Maggiore offer bearable temperatures even in August. This is one reason why many Italians head exactly there during the summer months.
Italy's official heat warning system: bollettini ondate di calore
What many visitors to Italy do not know is that the country has a sophisticated national heat warning system. The Ministry of Health (Ministero della Salute) publishes daily heat warning reports every summer, in 2026 from May 25 to September 20, known as the bollettini sulle ondate di calore.
The system monitors 27 cities, including Rome, Milan, Naples, Florence, Bologna, Turin, Palermo, Venice, and many more. Reports are published Monday through Friday at 11 a.m. on the Ministry's portal and through the free app "Caldo e Salute." They forecast risk levels up to 72 hours in advance.
The system uses four risk levels:
- Level 0 - no risk.
- Level 1 - low risk, forecast for the next 24 to 72 hours.
- Level 2 - elevated risk (a so-called "pre-alert"), where weather conditions pose a danger to the health of vulnerable groups.
- Level 3 The highest level: Level 2 heat conditions that persist for three or more consecutive days, making them dangerous for the entire population.
This system is designed especially for at-risk groups : older adults, people with chronic illnesses, children, and pregnant women. Older adults are particularly vulnerable because they often feel less thirsty, have a harder time regulating body heat, and frequently take medications that affect fluid and mineral balance. Anyone living in Italy should have the app on their phone during summer. It is the easiest way to receive timely warnings.
Coping with heat in Italy: the ten rules Italians live by
Every summer, the Ministry of Health consolidates its recommendations into the "Proteggiamoci dal caldo" campaign. The most important rules align with what Italians instinctively do anyway:
Avoid the midday heat. Between 11 a.m. and 6 p.m., direct sun exposure and strenuous activity should be avoided. There is good reason the riposo, the midday rest, exists: during this time, shops in many towns, especially in the south, close and life comes to a standstill. Errands, walks, and sightseeing are best planned for the early morning hours or the evening.
Cool the home strategically. Here, the persiane the classic Italian window shutters, are the most important tool. During the day, shutters and windows stay closed to keep the heat out. Ventilation happens only at night and early in the morning, when the air is cooler. Those with air conditioning should use it sparingly and avoid large temperature swings between indoors and outdoors.
Drink plenty, eat lightly. At least two liters of water per day, even without feeling thirsty. Fresh fruits and vegetables, light meals instead of heavy, fatty food. Alcohol and sugary drinks are counterproductive. The Mediterranean diet, with its tomatoes, melons, and cool appetizers, is a natural ally here.
Look out for others. A deeply Italian attitude: people look after their neighbors. Older adults living alone deserve particular attention. A warning sign is when they begin to cut back on daily habits such as eating, moving around, or washing.
Heat and daily life in Italy: what else matters
Anyone living in Italy long-term quickly notices that the entire summer rhythm bends to the heat. The well-known chiusura estiva, the summer closure: in August, especially around Ferragosto (August 15), countless shops, restaurants, and even doctors' offices close for weeks. Cities empty out as everyone heads to the seaside or the mountains. Those who are unaware of this can suddenly find themselves standing in front of locked doors.
The working world adapts as well. In extreme heat, construction workers and farmers can be temporarily relieved of duty through the cassa integrazione , because working in full sun simply becomes too dangerous. Car owners should park in the shade whenever possible and never forget that a parked car can turn into a deadly trap for children and animals within minutes.
Conclusion: respect for Italy's heat, but no fear
Those 43 degrees on St. Peter's Square were a wake-up call. Heat in Italy is no minor detail; it shapes the entire summer from the ground up. The good news is: Italians have always known how to live with it. Closed shops, slow midday hours, plenty of water, early rising, and the occasional retreat to the mountains. That is not a limitation, but rather a distinct art of living. Those who embrace it will experience the Italian summer not as a threat, but in all its beauty: aperitivo in the cool evening light, when the worst of the heat has passed and the country slowly breathes again.
