Large swaths of Europe are currently enduring a period of exceptional heat for the month of May, with temperatures climbing significantly above seasonal norms. From the United Kingdom to Italy, a “cúpula de calor”—or heat dome—has trapped warm air originating from North Africa over Western Europe, resulting in record-breaking conditions.
In the United Kingdom, London reached 35°C, marking a new historical temperature record for the month of May. Meanwhile, Météo-France has described the ongoing event as “excecional, histórica e sem precedentes,” noting that temperatures across the continent are running 10°C to 15°C above seasonal averages. France may see local temperatures reach 38°C or even 39°C in the coming days, with no significant relief expected before Sunday.
Impacts and Regional Warnings
Portugal is also experiencing the brunt of this heat, with areas such as the Alentejo, the Tagus Valley, and the interior regions facing the most intense conditions. Districts including Évora and Santarém are bracing for temperatures of 38°C. While the heat is expected to persist for approximately another week, the interior north and center of the country may face localized showers and thunderstorms as early as Wednesday.
Despite official warnings, the heat wave has already led to fatalities and drownings, affecting not only the elderly—who are considered particularly vulnerable—but others as well. In response, the DGS in Portugal has issued a series of recommendations to help residents mitigate the effects of the intense heat, with specific guidance for children, the elderly, those with chronic illnesses, and individuals who work outdoors.
Looking Ahead
Given that Portugal is situated in a region increasingly vulnerable to climate change, experts suggest that heat waves of this magnitude could become more frequent. While current forecasts indicate the heat will continue for another week, the immediate meteorological focus remains on the transition between the current high-pressure system and the potential for storms in the interior regions.
Frequently Asked Questions
Which regions in Portugal are most affected by the current heat?
The Alentejo, the Tagus Valley, and the interior regions are among the most impacted, with temperatures in districts like Évora and Santarém expected to reach 38°C.
What is the primary cause of this extreme weather?
The event is caused by a “cúpula de calor,” a high-pressure system that retains warm air arriving from North Africa over Western Europe.
What advice has been issued for the public?
The DGS recommends taking protective measures against the heat, with specific attention directed toward children, the elderly, people with chronic illnesses, and those working in outdoor environments.
How are you and your community adapting to these record-breaking temperatures?
