Miami weather in December
December in Miami: warm, rainy, with clean air — a great time to visit.
#11 of 12 months in Miami · #191 of 604 destinations to visit in December · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Miami climate normals — December
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 20°C / 69°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 81 mm / 3.2 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 17°C / 63°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 10.6 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Miami in December — FAQ
- Is December a good time to visit Miami?
- December in Miami: warm, rainy, with clean air — a great time to visit. It ranks #11 of 12 months for Miami on SeasonMap's comfort score (78/100).
- What is the weather like in Miami in December?
- In December, Miami averages a daily high of 24.6°C and a low of 20.3°C, with about 80.9 mm of rain over roughly 9.2 rainy days.
- What is the air quality in Miami in December?
- Miami has a mean US Air Quality Index of about 43 in December.