Miami Weather in December

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December's weather for Miami, Florida is mainly spectacular. The city basks in perfect temperatures with little rainfall. Although the climate is a little cloudier now than in other months. And it's been known to drop to freezing here at this time of year.

This page gives detailed information on the typical December weather for Miami. You can jump directly to data and descriptions for:

The numbers here are historical averages based on climate data gathered at the Miami International Airport, located five miles west of downtown Miami.

temperature iconTemperature

78 °F December average high 26 °C
63 °F December average low 17 °C

In most years, Miami averages a daily maximum temperature for December that's between 76 and 80 degrees Fahrenheit (24 to 27 degrees Celsius). The minimum temperature usually falls between 59 and 67 °F (16 to 19 °C).

The days at Miami cool steadily during December. By the end of the month, the temperature has dropped around 3 °F (2 °C) below what it was at the start.

14 days 80 °F maximum or above (27 °C)
10 days 60 °F minimum or below (16 °C)

Nearly every December day warms to over 70 °F (21 °C) in Miami. Temperatures above 90 °F (32 °C) are not expected here this month.

The thermometer dips to 50 °F (10 °C) or below on an average of three nights. About once a decade December does get as cold as 32 °F (0 °C).

precipitation iconRain

2.0 inches total December precipitation 52 millimetres
7 days of rain

Half the time, Miami receives 0.7 to 3 inches (18 to 79 mm) of rainfall in December. One in four years has drier weather, while another one in four is wetter.

sunshine iconSun

63 % sunshine in December
9 days with clear skies

December is the cloudiest month for Miami. The sun's rays reach the ground in Miami during 63 percent of daylight hours on average, for a total of 206 hours in the month. Typically on 9 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in December at Miami averages 10 hours and 33 minutes a day. The shortest days of the year, from around December 15th to 27th, last 10 hours and 32 minutes from sunrise to sunset.

humidity iconHumidity

73 % December average humidity

The relative humidity in Miami during December usually peaks at 83 percent in the morning then drops to 59 percent by early afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 80 83 83 69 59 60 70 76

wind iconWind

9.1 mph December wind speed average 14.6 kph

December is less windy than most other months in Miami.

lightning cloud iconStorms

1 day rainfall of 0.5 inches (13 mm) or more
1 day with thunderstorms in December
Reference

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

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