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 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.

What is the temperature in December in Miami?

In December, in Miami, Florida, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 63°F (17.2°C).

How many days does it rain in December in Miami?

In December, in Miami, the rain falls for 7.2 days. Throughout December, 1.7" (43mm) of precipitation is accumulated.

What is the water temperature in December in Miami?

In Miami, in December, the average water temperature is 76.5°F (24.7°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.5°F (24.7°C).
Average temperature in December - Miami, FL
  • 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).

  • 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).

Average humidity in December - Miami, FL
  • 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%).

Average rainfall in December - Miami, FL
  • 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).

Average rainfall days in December - Miami, FL
  • 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).

Average sea temperature in December - Miami, FL
  • Average sea temperature in December: 24.7°C

The best month for swimming (with the highest average sea temperature) is August (30.3°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).

Average daylight in December / Average sunshine in December - Miami, FL
  • Average daylight in December: 10.5h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.5h).

  • 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).

Average UV index in December - Miami, FL
  • 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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