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
December records an average high-temperature of a still moderately hot 73.6°F (23.1°C), indicating a minor variation from the preceding month. An average low-temperature of 64°F (17.8°C) is recorded during the nights in December.Humidity
The average relative humidity in December is 77%.Rainfall
In South Beach, in December, during 9.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In South Beach, during the entire year, the rain falls for 153.2 days and collects up to 13.15" (334mm) of precipitation.Ocean temperature
In December, the average ocean temperature in South Beach is 75°F (23.9°C).Note: Swimming in 75°F (23.9°C) water can be enjoyable based on one's cold tolerance and conditions like sunshine, wind, and ambient temperature. (Olympic swimmers compete in waters between 77°F (25°C) and 82.4°F (28°C).)
Daylight
With an average of 10h and 24min of daylight, December has the shortest days of the year in South Beach.On the first day of the month, sunrise is at 6:55 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:11 am and sunset at 5:37 pm EST.
Sunshine
In December, the average sunshine in South Beach is 6.2h.UV index
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 in December translates into these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! Sand and water enhance the UV exposure you receive.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in South Beach?
What is the average humidity in December in South Beach?
How much does it rain in South Beach in December?
What is the water temperature in December in South Beach?
What is the month with the shortest days in South Beach?
What is the average length of the day in December in South Beach?
What time are sunrise and sunset in December in South Beach?
How many hours of sunshine does South Beach have in December?
When is the lowest UV index in South Beach?
How high is the UV index in December in South Beach?
Average temperature in December
South Beach, FL
- Average high temperature in December: 73.6°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).
- Average low temperature in December: 64°F
The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in December
South Beach, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
South Beach, FL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
South Beach, FL
- Average humidity in December: 77%
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
South Beach, FL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in December
South Beach, FL
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).
Average sea temperature in December
South Beach, FL
- Average sea temperature in December: 74.9°F
The best month for swimming (with the highest average sea temperature) is August (84.8°F).
The coldest months (with the lowest average sea temperature) are January and February (72.3°F).
Average daylight in December /
Average sunshine in December
South Beach, FL
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in December
South Beach, FL
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).
Average UV index in December
South Beach, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in December
South Beach, FL
- Average cloud cover in December: 35
The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).
Average visibility in December
South Beach, 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).
South Beach, Florida, USA
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