With a population of around 14,800, Mastic Beach sits in New York, United States. The city operates in the Eastern Time Zone.
In 2025, Mastic Beach recorded an average annual temperature of 53°F — right at the 30-year normal of 52°F. The hottest day reached 89°F in June; the coldest was 11°F in January. Total precipitation was 44 inches (near normal). The wettest month was May.
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