El Rosario, in Oaxaca, Mexico, is home to roughly 11,700 people in the Central Time Zone at 17°N latitude.
In 2025, El Rosario recorded an average annual temperature of 68°F. The hottest temperatures reached 94°F in May; the coolest were 46°F in April. Total precipitation for the year was 39 inches, with the wettest month being June.
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