Jaco, in Puntarenas Province, Costa Rica, is home to roughly 4,100 people in the America/Costa Rica time zone at 9.6°N latitude.
In 2025, Jaco recorded an average annual temperature of 78°F. The hottest temperatures reached 91°F in March; the coolest were 71°F in January. Total precipitation for the year was 132 inches, with the wettest month being October.
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