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September 3 was the 4th hottest day of the month in 85 yearsPhoto by Matheus Bertelli on Pexels
Weather

September 3 was the 4th hottest day of the month in 85 years

Observador4 September 2026 at 20:27

September 3 was the fourth hottest day of the month of September in 85 years. The Portuguese Institute for the Sea and the Atmosphere (IPMA) confirmed that the average temperature in mainland Portugal reached 27.6°C on Thursday.

This extreme temperature value was caused by a mass of hot and dry air coming from North Africa, which affected mainland Portugal. This unusual meteorological situation caused temperatures to be significantly above average for this time of year.

The record of 27.6°C represents a historic value for the month of September, ranking among the hottest days ever recorded in this month since measurements began, 85 years ago.

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