IPMA Warns of Rising Temperatures and Increased Fire Risk Next Week in Portugal

The Portuguese Institute for Sea and Atmosphere (IPMA) has issued a warning about a gradual increase in temperatures starting Tuesday across mainland Portugal, accompanied by a heightened Risk of Rural Fire. The highest classification of fire danger may affect several municipalities in the south.

In a statement, the IPMA highlights that temperatures are already above the climatological norm for May across most of the territory, with a significant rise expected on the 29th and 30th.

Temperature Spike Expected

Maximum temperatures are forecast to exceed 30°C in most areas from Tuesday, May 27, except for some locations along the western coastal strip. The southern region and the Tagus valley could see temperatures soaring above 35°C.

Minimum temperatures will also increase, although the IPMA predicts values below 10°C in some parts of the North and Central regions until Monday, gradually rising to above 15°C across most of the territory by the end of the week.

Fire Risk Escalates

These meteorological conditions will lead to a gradual increase in the Rural Fire Risk (RFR), with high or very high classifications spreading across most regions. Some southern municipalities may reach the maximum RFR classification, potentially restricting permitted rural activities.

Weather Patterns Explained

The continuation of hot and dry weather is attributed to a mass of warm air from North Africa. The IPMA forecasts mostly clear or slightly cloudy skies, with possible morning fog in the North and Central regions, more likely in the early days of the week and along the coast.

Wind and UV Index

Winds will predominantly come from the north, weak to moderate, occasionally shifting to the east during the early hours. Stronger winds are expected along the western coast and highlands, especially in the afternoon, with a tendency to weaken and shift more easterly by May 29 and 30.

The UV radiation index will remain very high, typical for this time of year near the summer solstice, due to the lack of cloud cover.