Portugal has officially recorded its hottest May temperature ever measured, as an intense heatwave continues to grip large parts of Europe and raises concerns about the coming summer season.

According to meteorological data, the town of Mora in Portugal’s Alentejo region reached an extraordinary 40.3°C on May 27, setting a new national record for the month of May. The previous record of 40.0°C had stood since 2001, making this one of the most significant early-season heat events ever observed in the country.

Europe Faces Early Summer Heat

The record-breaking temperatures in Portugal are part of a much broader heatwave affecting several European countries.

Spain, Germany, Switzerland, France, and the United Kingdom have all experienced unusually high temperatures for this time of year, with some locations reporting conditions more typical of mid-summer than late spring.

Meteorologists say a persistent area of high pressure has allowed hot air to build across much of western and central Europe, creating dangerous conditions and pushing temperatures well above seasonal averages.

Alentejo Becomes the Hottest Spot

The highest temperature was recorded in Mora, located in Central Alentejo, one of Portugal’s traditionally hottest regions.

While temperatures above 40°C are not unusual during the peak of summer, reaching such values during May is exceptionally rare and highlights the intensity of the current weather pattern.

Experts note that the heatwave arrived weeks before the climatological start of summer, raising concerns about what the upcoming season may bring.

More Hot Weather Ahead

Forecast models suggest that hot and dry conditions will continue across Portugal through the coming days.

Although temperatures are expected to ease slightly from record levels, maximum values around 35°C remain forecast across many parts of the country.

These temperatures remain significantly above average for late May and early June.

Wildfire and Drought Concerns Growing

The ongoing heat is also increasing concerns about wildfire danger and water shortages.

Portugal has experienced recurring drought episodes in recent years, and the combination of high temperatures, dry vegetation, and elevated solar radiation can rapidly increase fire risk.

Civil protection authorities remain on alert as weather conditions continue to favor the development and spread of wildfires.

Climate Experts Warn of More Frequent Extremes

Scientists increasingly warn that climate change is making heatwaves more frequent, more intense, and longer-lasting across Europe.

Recent climate studies indicate that Europe is warming faster than many other regions of the world, increasing the likelihood of record-breaking temperature events.

Many experts believe that conditions once considered exceptional could become increasingly common in the coming decades.

A Preview of Summer 2026?

Meteorologists suggest the current heatwave may offer an early glimpse of what Europe could experience during the summer months ahead.

With temperatures already reaching historic levels in May, authorities across several countries are monitoring weather developments closely and preparing for the possibility of further heat episodes during the peak summer season.