Naples on red alert as heatwave tests the South's summer

Italy's health ministry placed 27 cities, from Trieste in the northeast to Palermo in Sicily, on red alert ahead of the weekend as a blistering heatwave across much of Europe toppled temperature records and disrupted energy and transportation systems in several countries, France 24 reported Friday.

Naples, the capital of Campania and the heart of the country's southern tourism economy, is among the cities under the highest-level heat warning. The red alert signals a health risk for the entire population, not just the elderly and vulnerable, at a time when the city's streets and archaeological sites are packed with August visitors.

The warning comes as temperatures across much of Italy approach or exceed those recorded during the infamous summer of 2003, according to The Local Italy, as heatwaves become more frequent across the Mediterranean.

The heat has set a national temperature record in Austria, fueled wildfires in France and disrupted energy and transportation systems across the continent, CBS News reported. For Campania, the red alert compounds an already strained summer: the region's coastal towns, from Sorrento to the Amalfi coast, rely on peak-season tourism that now coincides with dangerous heat.

The health warning carries particular weight for a region where outdoor work and tourism dominate the economy. Street vendors, guides at Pompeii and Herculaneum, and hospitality staff across Naples all face prolonged exposure to temperatures that authorities now deem a risk for the general public.

The Local Italy noted that the summer of 2026 could become Italy's hottest on record, with temperatures approaching those of 2003, a year that caused thousands of excess deaths across Europe. The comparison is stark for a region where air conditioning remains uneven in older buildings and public transport, and where the elderly population is significant.

Authorities have advised residents and visitors to avoid outdoor activity during the hottest hours, but the practical reality of a tourist season that peaks in August means many will continue to move through the city's sun-baked piazzas and congested streets. The red alert is set to remain in place through the weekend, with little relief expected in the immediate forecast.