San Mateo is a city of approximately 5,500 people in Quetzaltenango, Guatemala. Located in the America/Guatemala time zone at 14.9°N latitude.
In 2025, San Mateo recorded an average annual temperature of 56°F. The hottest temperatures reached 73°F in March; the coolest were 39°F in April. Total precipitation for the year was 67 inches, with the wettest month being June.
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