Castamay is a city of approximately 1,100 people in Campeche, Mexico. Located in the America/Merida time zone at 19.8°N latitude.
In 2025, Castamay recorded an average annual temperature of 80°F. The hottest temperatures reached 104°F in May; the coolest were 59°F in January. Total precipitation for the year was 29 inches, with the wettest month being September.
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