Usumatlan, in Zacapa, Guatemala, is home to roughly 5,000 people in the America/Guatemala time zone at 14.9°N latitude.
In 2025, Usumatlan recorded an average annual temperature of 80°F. The hottest temperatures reached 105°F in May; the coolest were 64°F in January. Total precipitation for the year was 48 inches, with the wettest month being June.
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