With a population of around 47,100, Tres Arroyos sits in Buenos Aires, Argentina. The city operates in the America/Argentina/Buenos Aires time zone.
In 2025, Tres Arroyos recorded an average annual temperature of 59°F. The hottest temperatures reached 100°F in December; the coolest were 26°F in July. Total precipitation for the year was 32 inches, with the wettest month being March.
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