About Diamante, Entre Rios's Climate & Weather History

With a population of around 19,500, Diamante sits in Entre Rios, Argentina. The city operates in the America/Argentina/Cordoba time zone.

In 2025, Diamante recorded an average annual temperature of 66°F. The hottest temperatures reached 101°F in February; the coolest were 28°F in July. Total precipitation for the year was 47 inches, with the wettest month being March.