The week starts with high temperatures, especially in inland regions of Portugal, due to the influence of a very warm air mass associated with the strengthening of the anticyclone. This Monday, thermometers could reach 35°C in Portalegre and Castelo Branco, 36°C in Beja and 37°C in Santarém. The heat will be particularly intense in the interior, with values that could be 8 to 9 degrees above the usual for this time of year. From Tuesday, September 15th, a significant change in the weather is forecast.
WEATHER - The week starts with heat but temperatures drop from Tuesday onwards
Noticias de Arronches14 September 2026 at 16:45
Why this matters
Readers in inland regions, especially in the Alentejo and Beira Baixa, face exceptionally high temperatures at the start of the week, which can affect health, energy consumption and outdoor activities. The weather change forecast for Tuesday brings relief, but the transition may include unstable weather conditions.
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This is our short summary of a report published by Noticias de Arronches on 14 September 2026 at 16:45; the full text stays with the publisher. In our feed it sits under Weather, and it concerns Beja. We currently carry 3297 items in that section.
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