Italy puts all 27 major cities on highest heat alert

Italy has placed all of its 27 major cities, from Trieste in the north to Palermo in the south, under the highest heat alert as the fourth heatwave to hit the country this summer intensifies, according to the Guardian. The red alert covers every major urban centre, with temperatures in some areas edging close to 40C.

For Puglia, the alert arrives at the peak of the harvest and tourist season. The region's olive groves and vineyards are already under strain from drought, and the heat now threatens the quality and yield of the summer crop. The coastal towns of Salento, which draw thousands of visitors this month, face the challenge of keeping tourists safe while maintaining the region's reputation as a Mediterranean escape.

The heatwave is not merely a discomfort but a structural test for the South. Foreign coverage has repeatedly linked Italy's rising temperatures to agricultural stress, from the Xylella crisis in olive groves to the search for climate-resistant wheat. The red alert makes plain that the problem is no longer seasonal but systemic.

The Guardian reported that the red alert, the highest level on Italy's heat warning system, was issued for all 27 major cities as the fourth heatwave of summer intensified. The alert system is designed to protect vulnerable populations, particularly the elderly and those with pre-existing health conditions, from the health risks of extreme heat.

For Puglia, the heat compounds an already difficult summer. The region has faced drought conditions that have tightened water restrictions across the South, according to earlier international reporting. Olive groves, the backbone of the local economy, are particularly vulnerable; prolonged heat can reduce oil yield and quality, a concern that foreign food press has tracked closely since the Xylella outbreak decimated trees in the Salento peninsula.

Tourism, the other pillar of the regional economy, is also affected. The BBC has reported that experts are urging visitors to adapt to the heat, recommending night-time tours and air-conditioned breaks. In Puglia's whitewashed towns and beach resorts, the challenge is to maintain the summer season without endangering visitors or staff. The region's infrastructure, often criticised in international coverage as underdeveloped compared to the North, is being tested by the influx of tourists during a heat emergency.

The heatwave also carries an energy dimension. South-eastern Europe is facing an energy crunch as demand for cooling rises, the Guardian reported in its live coverage of the heatwave. Puglia, home to the Taranto steelworks and a growing renewable energy sector, is at the centre of the national conversation about how to balance industrial needs with the pressures of a warming climate.

The red alert is expected to remain in place until temperatures ease, with authorities advising residents and visitors to avoid the sun during peak hours and to stay hydrated. For the South, the heat is no longer an exception but the new normal, and the region's farms, towns and energy grid are all learning to live with it.