The Portuguese Institute for Sea and Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA) has issued a yellow warning (aviso amarelo) for high temperatures in nine districts. The heat is expected to persist in Viseu, Évora, Faro, Beja, and Portalegre until Saturday evening, with temperatures potentially reaching 39 degrees Celsius.
Heatwave triggers yellow warnings across nine districts
Thursday, 13 August 2026AI summary
Context & Explainers
A red warning is the highest alert level issued by Portugal's weather agency, the Portuguese Institute for the Sea and the Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA), used when conditions pose a very high risk to life and property. Under a red warning authorities may close roads, suspend transport and advise people to avoid coastal and flood‑prone areas, so follow civil protection instructions during the Friday–Saturday storm period.
