The heat holds through Wednesday in four inland districts, and so does the fire danger
Bragança, Vila Real, Viseu and Guarda go under a yellow warning from 9am Tuesday until 9pm Wednesday. Madeira and Porto Santo have been under one since today.
The heat is not going anywhere this week. The IPMA has placed the districts of Bragança, Vila Real, Viseu and Guarda under a yellow warning for persistently high temperatures, running from 9am on Tuesday to 9pm on Wednesday.
In the islands the warning is already live. The north and south coasts of Madeira and the island of Porto Santo went yellow today, and stay that way until 6pm on Wednesday.
Yellow is the mildest of the three levels. It is not a disaster signal. It flags risk to activities that depend on the weather and asks people to watch how things develop. In practice, anyone working outdoors in the northern and central interior has two days to rearrange their hours.
Today’s numbers
For Monday the institute forecast largely clear skies on the mainland, with some morning cloud near the coast, and a small rise in maximum temperatures inland in the north and centre.
Highs run from 25C in Viana do Castelo to 34C in Bragança, Évora and Beja. Funchal and Porto Santo sit around 27C. Madeira was expecting heavy cloud at times and light showers on the higher ground until late morning.
What it does to the fire risk
This is the part that matters more than the thermometers. Around 30 councils across the northern and central interior and the Algarve are at maximum rural fire danger today, according to the IPMA. The index blends temperature, relative humidity, wind and fuel moisture, and a second run of hot days pushes it to the top even without record heat.
We covered what July’s heatwave did to the fire risk, and the pattern is repeating. That maximum risk is also why the official eclipse viewing events on Wednesday were pulled out of the villages inside the Montesinho Natural Park.
District warnings and the fire danger index are updated through the day on the IPMA portal.
Photo: Vitor Oliveira / Wikimedia Commons (CC BY-SA 2.0)