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December Weather in Miami, United States

Last updated: June 24, 2025

In December, the average temperature in Miami, United States hovers around 6°C (44°F), with extremes ranging from a chilly -10°C (14°F) to a warm 24°C (75°F). Expect about 51 mm (2.0 in) of precipitation spread over 5 days, contributing to an 85% average humidity that adds to the area's unique climate experience.

December Temperature in Miami

In December in Miami, the average temperature is 6°C (44°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -10°C (14°F). Be prepared for a wide range of temperatures when traveling to Miami during this time.

December Weather in Miami: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Miami, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miami, December typically has an average temperature of 6°C (44°F), with highs reaching up to 24°C (75°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec374052586878817975614943
Data source: Temperature data for Miami generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Miami

In Miami in December, the precipitation amount is 51 mm (2.0 in) over a period of 5 days.

December Precipitation Trends in Miami

The chart displays monthly precipitation patterns in Miami, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Miami, December typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec797113514220097100114871335851
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Miami

In Miami in December, humidity is 85%. With an average temperature of 6°C (44°F), this humidity feels like a chilly dampness that seeps into your clothes, making travel uncomfortable and adding an extra layer of chill to the air.

December Average Humidity in Miami

This chart illustrates the average monthly humidity levels in Miami, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Miami is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Miami

In Miami in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Miami, you can check the information here.

Maximum UV Index Levels in Miami for December

The chart shows the monthly maximum UV Index (UVI) for Miami in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Miami typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Miami December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Miami Compares to Other Months

Weather in Miami varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Miami, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Miami, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)79 mm (3.1 inches)77%moderate
February Weather4°C (40°F)71 mm (2.8 inches)76%high
March Weather11°C (52°F)135 mm (5.3 inches)71%high
April Weather15°C (58°F)142 mm (5.6 inches)73%very high
May Weather20°C (69°F)200 mm (7.9 inches)83%very high
June Weather26°C (78°F)97 mm (3.8 inches)83%extreme
July Weather27°C (82°F)100 mm (3.9 inches)81%extreme
August Weather26°C (79°F)114 mm (4.5 inches)73%very high
September Weather24°C (75°F)87 mm (3.4 inches)67%very high
October Weather16°C (61°F)133 mm (5.3 inches)72%high
November Weather9°C (49°F)58 mm (2.3 inches)82%moderate
December Weather6°C (44°F)51 mm (2.0 inches)85%moderate

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