Miami
Florida, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and Climate
Miami, FL

Stunning layout of the Miami Coast in Florida, with a beautiful, clean beach, and perfect cityscape and skyline
Stunning layout of the Miami Coast in Florida, with a beautiful, clean beach, and perfect cityscape and skyline
December lies in the relatively dry season, and the start of the winter is mild and dry. Storms are less frequent, but there may be an occasional cold wave.
Lows drop to an average of 63°F (17.2°C) with the minimum temperatures rarely dropping below 59°F (15°C). Daily highs are around 78°F (25.6°C), and the cloudiest month is the driest month in Miami.
The shortest days of the year at 10.5 hours do not prevent a visitor from enjoying the spectacular nature around the area.
  • The average high temperature in December: 25.5°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (24.7°C).

  • The average low temperature in December: 17.2°C

Months with the highest average low temperature are July and August (25.2°C).
The coldest month (with the lowest average low temperature) is January (15.5°C).

  • The average humidity in December: 72.5%

The month with the highest relative humidity is September (77.8%).
The month with the lowest relative humidity is April (67.3%).

  • The average rainfall in December: 43mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the lowest rainfall) is December (43mm).

  • The average rainfall days in December: 7.2 days

The month with the highest number of rainy days is August (18.9 days).
The month with the lowest number of rainy days is April (6.4 days).

  • The average sea temperature in December: 25°C

The best month for swimming (with the highest average sea temperature) is August (30°C).
Coldest months (with the lowest average sea temperature) are January, February and March (24°C).

  • The average daylight in December: 11h

Months with the longest days are June and July (Average daylight: 14h).
Months with shortest days are January, February, November and December (Average daylight: 11h).

  • The average sunshine in December: 7h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 7h).

  • The average UV index in December: 5

Months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).

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