Coamo, in Coamo, Puerto Rico, is home to roughly 11,900 people in the America/Puerto Rico time zone at 18.1°N latitude.
In 2025, Coamo recorded an average annual temperature of 78°F. The hottest temperatures reached 93°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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