Five districts in southern Portugal are under an orange weather warning this weekend due to expected high temperatures, the Portuguese Institute of the Sea and Atmosphere (IPMA) announced.
Évora, Faro, Setúbal, Beja, and Portalegre will be under an orange alert from midnight Saturday to midnight Sunday because of "persistently high maximum temperatures."
These districts are under a yellow alert from 9 a.m. Friday to midnight Saturday. Meanwhile, Bragança, Viseu, Guarda, Vila Real, Santarém, Lisbon, and Castelo Branco will be under a yellow alert from the same time Friday to midnight Sunday due to the heatwave.
Porto, Viana do Castelo, Leiria, Aveiro, Coimbra, and Braga will be under a yellow alert from 9 a.m. Saturday to midnight Sunday.
The orange alert, the second most severe on a three-level scale, is issued by IPMA when there is a "moderate to high-risk meteorological situation." The yellow alert, the least severe, indicates a risk for certain weather-dependent activities.
African Heatwave Influence
IPMA forecasts a gradual temperature rise starting Thursday, with increases up to 10 degrees Celsius by the weekend, exceeding 40 degrees in some regions.
A high-pressure system north of the Iberian Peninsula and a trough bringing hot air from North Africa will influence the weather in mainland Portugal and Madeira.
Temperatures will rise gradually, peaking on Saturday with 35 to 40°C across most of the country, except some northern and central coastal areas. Southern regions, the Tagus Valley, and Douro Valley could see 40 to 44°C.
Nighttime temperatures will stay around 20°C, not dropping below 25°C in some southern areas, especially the Algarve coast and Portalegre region.
Dust in suspension is expected in the south from this afternoon, spreading to other areas in the following days.
Madeira Hits 28°C
In Madeira, temperatures will also rise gradually, with the most significant increases in the highlands, reaching 26 to 28°C over the weekend.
Minimum temperatures on the south coast and Porto Santo Island will not fall below 20°C, known as tropical nights. On the north coast and highlands, they’ll range between 14 and 18°C.
The duration of this heatwave remains uncertain but could extend into early July, particularly in the south.
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