A weather forecast was published for September 13, 2026, covering the municipalities of Mafra, Ericeira, Sintra, Torres Vedras, Santa Cruz and Lisbon, with information for September 13 to 16. On Sunday and Monday, all locations show clear skies, with high temperatures, with Torres Vedras and Lisbon being the hottest areas, with maximums of 37°C and 36°C respectively.
From Tuesday, the weather changes to partly cloudy or few clouds in all locations, with a significant drop in maximum temperatures. Torres Vedras records the largest temperature range, varying between 16°C and 37°C throughout the forecast period.
Winds are generally light to moderate, predominantly from the north, northeast and northwest in the different regions. Minimum temperatures range between 16°C and 23°C, with the coastal areas of Santa Cruz and Ericeira showing milder values.
The Portuguese Institute of the Sea and Atmosphere issued a yellow warning for hot weather in the Lisbon district, valid between September 12 and 14, 2026, due to the persistence of high maximum temperature values. The last update was made on September 12 at 18:27.
