The Italian summer of 2026 has brought record-breaking temperatures to many regions of the country, values that are extraordinary even for a nation as accustomed to heat as Italy. At the Stazione Centrale in Naples a surface temperature of 48 degrees was recorded on 6 August, as documented by Legambiente Campania in a monitoring study covering ten urban heat hotspots. In the urban centres of Rome, Milan and Bologna, the effects of what is already the fourth heatwave of the year are being felt well into the night. And in the Lombard wine region of Franciacorta, the harvest has begun under floodlights at four o'clock in the morning. This is a portrait of how a country that knows how to live with summer is reaching its limits, and adapting at the same time.
Naples, Rome and Milan in the urban heat
The extreme summer is felt most acutely in Italy's major cities. In early August, the highest heat-alert warning level was in force in 27 Italian cities monitored by the Ministry of Health, the so-called Bollino rosso, which is declared when extreme heat combines with high humidity. As the Italian Ministry of Health warns in its daily heat-alert bulletin, this combination poses acute health risks not only for the elderly and other vulnerable groups, but also for healthy and physically active individuals.
What weighs most heavily on daily urban life is the absence of any cooling during the night. In Rome, Naples and Milan alike, temperatures barely drop below 27 to 28 degrees even after midnight, with humidity levels that further intensify the subjective sense of strain. Meteorologists refer to these nights as notti tropicali, tropical nights. Whereas daytime temperatures of 37 or 38 degrees can still be escaped in the shade of an Italian piazza, it is the night in the city centres that becomes the true ordeal.
When the harvest takes place at night
An image from the Lombard wine region of Franciacorta attracted considerable attention this week. As documented by the Giornale di Brescia from Borgonato di Corte Franca, the Berlucchi estate became the first in the region to begin a night harvest, after weeks of temperatures between 37 and 38 degrees brought the grapes to ripeness significantly faster than in previous years. The harvest begins at four in the morning under harsh floodlights, so that the grapes do not overheat in the sun and arrive at the winery at a lower temperature. The ripening of the grapes has also accelerated: across the whole of Franciacorta, picking began on 30 July, roughly a month earlier than it did thirty years ago.
For Arturo Ziliani, amministratore delegato and oenologist at Berlucchi, the matter goes beyond wine itself. To innovate, he explained to Italian media, means caring for the grapes, the wine and, above all, for the people and the territory. The decision to move the harvest into the early hours of the morning is a practical measure, but also a symbolic gesture. What appears in Franciacorta in 2026 as something new is already a growing practice in the Italian wine world: the vendemmia notturna, the night harvest, has spread as a form of climate adaptation from Sicily through Apulia and Tuscany all the way to the north.
The Po and Lake Maggiore at historic lows
What manifests in the cities as heat finds its rural equivalent in drought. As classified by the Autorità di Bacino Distrettuale del Fiume Po in its current Osservatorio bulletin, the Po and the regulatory lakes of northern Italy are in a state of extreme drought. The Po, Italy's longest river, is showing water levels significantly below those of a normal summer. Lake Maggiore, the second largest lake in Italy after Lake Garda, is approaching, at a water level of around 192.28 metres above sea level, within just a few centimetres of the absolute historic low recorded in August 1990. The Mediterranean is also affected: water temperatures of over 30 degrees have been recorded in the northern Adriatic, a figure that carries ecological consequences for coastal waters . The extreme drought has simultaneously worsened the wildfire situation across Italy , with particularly severe incidents in Sicily, Sardinia and Piedmont.
As documented by Coldiretti in their ongoing assessment of the climate impact on agriculture, estimated losses to the Italian agricultural sector from heat, drought, hail and fires now amount to more than three billion euros. All major agricultural products are affected, from rice cultivation in the Po Valley to durum wheat in southern Italy, as well as milk, olive oil and fruit.
A country accustomed to the heat
What characterises the Italian approach to heat is a well-practised set of everyday habits. The pausa estiva between one and five in the afternoon, when many shops close and public life comes to a standstill, is a Mediterranean adaptation to the climate with a long tradition. In bars and cafés, a complimentary glass of water is standard practice, and many churches and museums offer cool retreats behind their thick stone walls. The cultural willingness to organise the day around the rhythm of the heat is deeply ingrained in the Italian population.
The figures relating to excess mortality also present a nuanced picture. As Il Fatto Quotidiano documents in its assessment of the northern Italian summer crisis, researchers estimate that the heatwave has caused several thousand additional deaths in Italy so far this summer. The figures remain provisional until the official ISTAT review in autumn, with a disproportionate share among older people and those with chronic illnesses.
What Italy is planning for the future
Despite this capacity for adaptation, much remains to be done. In several major Italian cities, municipal climate plans have now made it onto the local agenda, focusing on more green spaces, shaded pedestrian zones and permeable surfaces. The pace of implementation varies, but the debate around adapting Italian cities to prolonged periods of heat has grown considerably more intense in recent years.
For travellersarriving in Italy in autumn, the summer of 2026 will remain visible long after it has ended: in vineyards harvested earlier than usual, in river valleys bearing visible drought marks, in Italian cities debating their urban planning futures, and at Adriatic resorts such as Milano Marittima, which are having to contend with the ecological consequences of elevated sea temperatures. A summer that has shifted the boundaries of the familiar and recalibrated Italy's relationship with heat for the years ahead.
