With a population of around 2,600, Alter do Chao sits in Portalegre, Portugal. The city operates in the Europe/Lisbon time zone.
In 2025, Alter do Chao recorded an average annual temperature of 63°F. The hottest temperatures reached 106°F in June; the coolest were 27°F in January. Total precipitation for the year was 37 inches, with the wettest month being March.
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