Thursday was the fourth hottest day of September in 85 yearsPhoto by juliane Monari on Pexels
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Thursday was the fourth hottest day of September in 85 years

Diário de Viseu5 September 2026 at 13:00

Last Thursday was the fourth hottest day of September in 85 years, according to data from the Portuguese Institute for the Sea and Atmosphere (IPMA). This record represents a historic milestone in the measurement of temperatures in Portugal during the month of September.

The highest maximum temperature value was recorded in Alcochete, where thermometers reached 44.3 degrees Celsius. This extreme value contributed to the classification of the day as one of the hottest ever recorded in September.

IPMA was the source responsible for releasing this data, indicating that the heat wave that affected the country during that period was responsible for these abnormally high temperatures for the time of year.

This achievement represents an alert to the extreme climate conditions that have been observed, with this day joining the group of the four hottest days of September since records began, 85 years ago.

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