According to the Portuguese Institute of the Sea and Atmosphere (IPMA), the Faro area and the islands of Madeira and Porto Santo are under an orange warning, the second most severe due to heat.
According to IPMA, this orange warning will be in effect until Sunday evening.
The areas of Bragança, Guarda, Castelo Branco, Portalegre, Évora and Beja are under yellow warning, the third most severe, also due to continued high temperatures.
In the case of Bragança and Guarda, the warning is valid until the end of the day on Friday, while in other areas it is valid until the end of the day on Saturday.
This Friday, IPMA predicts a slight increase in maximum temperature throughout the territory and a slight increase in minimum temperature in the north and center, as well as in the eastern part of the Algarve.
The wind will be northwesterly, strong in places in the highlands and in the afternoon on the coastal strip. There will also be fog or morning mist.
In terms of temperature, the minimum temperature will range from 16ºC (Braganca, Vila Real, Viseu and Sines) to 25ºC (Faro), while the maximum temperature will range from 26ºC (Braga and Aveiro) to 42ºC (Faro).