Rio San Juan is a city of approximately 9,000 people in Maria Trinidad Sanchez, Dominican Republic. Located in the America/Santo Domingo time zone at 19.6°N latitude.
In 2025, Rio San Juan recorded an average annual temperature of 79°F. The hottest temperatures reached 94°F in October; the coolest were 65°F in January. Total precipitation for the year was 44 inches, with the wettest month being April.
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