Sebastian is a city of approximately 24,000 people in Florida, United States. Located in the Eastern Time Zone at 27.8°N latitude.
In 2025, Sebastian recorded an average annual temperature of 74°F — right at the 30-year normal of 74°F. The hottest day reached 96°F in August; the coldest was 40°F in December. Total precipitation was 48 inches (drier than usual). The wettest month was September.
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