Portugal prepares for rising temperatures and likely heatwave

Billy Odell Tucker-Robinson Founder & Host — Banking With Billy Network • Financial Intelligence • Markets • World News • Independent Analysis
Published: 2026-09-18 • Permanent link

Fierce heatwaves are brewing in Portugal, with temperatures expected to soar to 38 degrees Celsius in the Alentejo and Tagus Valley regions. This is according to meteorological forecasts, which indicate that an anticyclone positioned to the north of the Azores will drive the extreme heat. The heatwave is expected to peak during the day, with temperatures remaining elevated at night, posing a significant threat to public health.

Rising temperatures have significant implications for Portugal's energy market, with a potential surge in electricity demand expected to put pressure on the grid. As a result, the country's energy regulator, EPE, has warned of the need for increased vigilance to prevent power shortages. The heatwave is also likely to drive up energy costs, with households and businesses facing higher bills.

Historically, Portugal's climate has been characterized by mild winters and warm summers, but extreme heat events have become more frequent in recent years. According to data from the Portuguese National Institute of Statistics, the country has seen a 20% increase in heat-related deaths since 2010. Experts warn that the heatwave poses a significant threat to public health, particularly for vulnerable populations such as the elderly and young children.

As the heatwave intensifies, the Portuguese government is likely to face increasing pressure to take action to mitigate its impacts. The government has already announced plans to deploy emergency teams to provide support to vulnerable populations, but further measures may be needed to prevent power shortages and protect public health. The European Union's energy policy framework is also likely to come under scrutiny, with the bloc's climate and energy ministers set to meet in Brussels next month to discuss the implications of the heatwave for the EU's energy sector.