Santiago de Maria, in Usulutan, El Salvador, is home to roughly 15,000 people in the America/El Salvador time zone at 13.5°N latitude.
In 2025, Santiago de Maria recorded an average annual temperature of 73°F. The hottest temperatures reached 92°F in July; the coolest were 62°F in January. Total precipitation for the year was 77 inches, with the wettest month being June.
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