With a population of around 89,700, Olavarria sits in Buenos Aires, Argentina. The city operates in the America/Argentina/Buenos Aires time zone.
In 2025, Olavarria recorded an average annual temperature of 59°F. The hottest temperatures reached 99°F in February; the coolest were 25°F in July. Total precipitation for the year was 39 inches, with the wettest month being March.
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