With a population of around 4,800, Rio Meao sits in Aveiro, Portugal. The city operates in the Europe/Lisbon time zone.
In 2025, Rio Meao recorded an average annual temperature of 60°F. The hottest temperatures reached 93°F in July; the coolest were 36°F in January. Total precipitation for the year was 67 inches, with the wettest month being November.
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