San Cayetano, in Nayarit, Mexico, is home to roughly 4,300 people in the America/Mazatlan time zone at 21.4°N latitude.
In 2025, San Cayetano recorded an average annual temperature of 72°F. The hottest temperatures reached 97°F in April; the coolest were 52°F in January. Total precipitation for the year was 44 inches, with the wettest month being September.
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