December in Miami averages a daily high of 24.8°C with nights around 18.6°C. Expect roughly 5.8 wet days totalling 62.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Miami is November–April.
Based on MIAMI BEACH, FL US (7km), 1995–2024. 25 years of December data.