About Santiago Tlacotepec, Mexico's Climate & Weather History

Santiago Tlacotepec is a city of approximately 15,900 people in Mexico, Mexico. Located in the Central Time Zone at 19.2°N latitude.

In 2025, Santiago Tlacotepec recorded an average annual temperature of 55°F. The hottest temperatures reached 80°F in May; the coolest were 36°F in January. Total precipitation for the year was 45 inches, with the wettest month being June.