Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Miami's shift into December is marked by a subtle change to a still warm 75.7°F (24.3°C) from November's 77.9°F (25.5°C) in temperature. A slight dip in temperature to an agreeable 69.4°F (20.8°C) marks the average nights during December.Humidity
December is the most humid month, with an average relative humidity of 75%.Rainfall
In Miami, during December, the rain falls for 11.7 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Miami, there are 182.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Ocean temperature
In December, the average ocean temperature is 76.5°F (24.7°C).Note: For someone not comfortable with cold, swimming in 76.5°F (24.7°C) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.
Daylight
December has the shortest days of the year, with an average of 10h and 36min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:07 am and sunset at 5:40 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 6.4h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 5 transforms into these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the ocean temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Miami have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Miami, FL
- Average high temperature in December: 75.7°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (73°F).
- Average low temperature in December: 69.4°F
The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).
Average pressure in December
Miami, FL
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in December
Miami, FL
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in December
Miami, FL
- Average humidity in December: 75%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Miami, FL
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Miami, FL
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).
Average sea temperature in December
Miami, FL
- Average sea temperature in December: 76.4°F
The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).
Average daylight in December /
Average sunshine in December
Miami, FL
- Average daylight in December: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Miami, FL
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).
Average UV index in December
Miami, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in December
Miami, FL
- Average cloud cover in December: 32
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in December
Miami, FL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Miami, Florida, USA
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