San Marcos is a city of approximately 2,600 people in Zacatecas, Mexico. Located in the Central Time Zone at 22.3°N latitude.
In 2025, San Marcos recorded an average annual temperature of 63°F. The hottest temperatures reached 90°F in May; the coolest were 34°F in January. Total precipitation for the year was 22 inches, with the wettest month being July.
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