Portugal breaks May heat record as western Europe moves into early emergency footing

Portugal recorded 40.3C in the central town of Mora on Wednesday, setting a new national record for May, according to the BBC and The Watchers. The reading surpassed Portugal’s previous May high of 40C, which the BBC said was set in May 2001.

The Watchers, citing the Portuguese Institute for Sea and Atmosphere, said the new record was set on May 27, 2026, and gave the equivalent as 104.5F. It said the earlier 40C benchmark was recorded at Pinhão on May 30, 1953, and matched at Termas de Monfortinho on May 30 and 31, 2001.

The heat was not confined to one station. The Watchers reported that Alvega reached 40.1C on the same day, followed by Reguengos at 39.1C, Évora and Santarém/Fonte Boa at 38.3C, Avis/Benavila at 38.2C and Ansião at 37.7C. It said Portugal recorded 22 new station maximum-temperature records during the heatwave period, one on May 26 and the rest on May 27.

The heatwave began on May 20, with the strongest conditions affecting Alentejo and the Tagus Valley, according to The Watchers. The BBC reported that parts of Portugal were expected to remain above 35C on Friday before the heat began to recede, citing the country’s meteorological office.

The wider western European heat episode has pushed governments into early response mode. The BBC reported that French Prime Minister Sébastien Lecornu chaired a ministerial meeting on Thursday to develop readiness plans for extreme heat, including forest-fire prevention and adequate water supplies over the summer. Plataforma Media reported similar preparations, describing emergency responses focused on heatwave readiness, fire prevention and regional water supply.

Schools and public services are already part of the strain. The BBC reported that Baccalaureate exams in France would continue despite some schools closing because of inhospitable indoor temperatures. A primary school in Souston, in the Landes region, was to remain shut after reaching 53C inside earlier in the week, according to the BBC. Plataforma Media said education unions criticised the decision to continue exams and reported that nearly 78% of secondary schools recorded indoor temperatures above 30C during the week.

The public-health chain is practical before it becomes statistical. High heat changes where people can safely work, study, travel and exercise. It raises demand for shade, water, cooling and medical capacity, and it forces decisions about exams, classrooms, traffic, events and fire readiness before final health totals are known.

The heat also disrupted daily life beyond schools. The BBC reported that tennis world number one Jannik Sinner bowed out of the French Open after suffering from the heat, while Italian authorities issued a red heatwave alert for Rome, where temperatures reached 32C on Thursday. Plataforma Media reported that Paris reached 33C on Thursday and was expected to hit 34C over the weekend, with 17 departments under an orange alert.

The same episode set records elsewhere. The Watchers reported that the UK reached a provisional 35.1C at Kew Gardens on May 26, breaking the UK May and spring temperature record for the second consecutive day, after 34.8C at the same site on May 25. It also cited Météo-France data showing May 26 was France’s hottest May day on record, with a national average temperature of 24.9C.

What remains uncertain is how long the health and infrastructure effects will last once temperatures ease. The supplied evidence verifies Portugal’s record, multiple station records, French preparedness meetings, school disruptions and heat alerts, but it does not provide final hospitalisation figures, water-use totals, crop impacts or wildfire losses.

The cleanest implication is that Europe’s heat response is no longer waiting for high summer. A national May record in Portugal, school closures in France, alerts in Italy and readiness meetings across government show climate adaptation becoming routine public administration: water supply, classrooms, hospitals, transport and fire prevention all have to move earlier.