Mariano Colon is a city of approximately 2,400 people in Coamo, Puerto Rico. Located in the America/Puerto Rico time zone at 18°N latitude.
In 2025, Mariano Colon recorded an average annual temperature of 78°F. The hottest temperatures reached 94°F in August; the coolest were 57°F in December. Total precipitation for the year was 38 inches, with the wettest month being September.
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