Nearly all of mainland Portugal sits under a yellow heat warning on Tuesday, with 40C in the forecast
IPMA has every mainland district except Faro under a yellow heat warning from Monday into Tuesday, with highs of 40C expected in Santarem, Beja and Evora.
If you woke up today convinced the house was hotter than it had any right to be, you were not imagining it. IPMA placed every mainland district except Faro under a yellow heat warning, and the warning carried over from Monday into Tuesday.
Which districts are under the heat warning?
Almost all of them. The list runs from Braganca and Vila Real down to Setubal and Beja, and only the Algarve escapes, which for the Algarve is faintly ridiculous. The toughest highs are forecast for Santarem, Beja and Evora, where thermometers should touch 40C. Parts of the interior may go past that.
How long does the IPMA warning last?
It runs from nine on Monday morning until six on Tuesday evening. After that the warning goes away, not the heat: the outlook for 27 July to 2 August still points to temperatures above the seasonal normal across most of the country, three to five degrees above average with peaks reaching eight.
Then there is the part nobody enjoys hearing about: tropical nights, the ones where the temperature never drops below 20C and the bedroom simply refuses to cool down.
Two numbers are worth putting side by side. This heat lands in a summer where the burnt area is already the largest for this point in the year since 2017, and it is why the firefighting force stays reinforced even after Portugal sent 128 crew to help Spain in Avila. Dry ground plus wind plus 40C is a familiar recipe. Current forecasts and alerts live on the IPMA portal.
Drink water, shut the blinds in the morning, and save the walk for after seven.
Image: Jocelyn Erskine-Kellie from London, UK / Wikimedia Commons (CC BY-SA 2.0)