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 denotes a minimal variation in the average high-temperature to a still warm 75.6°F (24.2°C) from November's 77.9°F (25.5°C). December nights reflect a consistent temperature dip to an agreeable 71.4°F (21.9°C), a slight descent from daytime peaks.Humidity
The months with the highest humidity in Duck Key, Florida, are February and December, with an average relative humidity of 77%.Rainfall
In Duck Key, Florida, in December, it is raining for 12.5 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Duck Key, there are 186.2 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Ocean temperature
In Duck Key, in December, the average water temperature is 76.5°F (24.7°C).Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 76.5°F (24.7°C) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The month with the shortest days in Duck Key, Florida, is December, with an average of 10h and 36min of daylight.On the first day of the month, sunrise is at 6:51 am and sunset at 5:34 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:45 pm EST.
Sunshine
December has the least sunshine of the year in Duck Key, Florida, with an average of 6.6h of sunshine.UV index
The average daily maximum UV index in December in Duck Key is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the UV index of 6 transforms into the following advice:
Deflect overexposure. Sun protection is a necessity. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be alert! The reflection of water and sand augments UV radiation intensity.
Frequently asked questions
What is the average December temperature in Duck Key?
What are the most humid months in Duck Key?
What is the average humidity in December in Duck Key?
How much does it rain in Duck Key in December?
What is the ocean temperature in December in Duck Key?
What is the month with the shortest days in Duck Key?
How many hours of daylight does Duck Key have in December?
When is the sunrise / sunset in December in Duck Key?
What is the month with the least sunshine in Duck Key?
How many hours of sunshine does Duck Key have in December?
What is the UV index intensity in December in Duck Key?
Average temperature in December
Duck Key, FL
- Average high temperature in December: 75.6°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.9°F).
- Average low temperature in December: 71.4°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (67.5°F).
Average pressure in December
Duck Key, FL
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in December
Duck Key, FL
- Average wind speed in December: 12.9mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).
Average humidity in December
Duck Key, FL
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in December
Duck Key, FL
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days in December
Duck Key, FL
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).
Average sea temperature in December
Duck Key, FL
- Average sea temperature in December: 76.5°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight in December /
Average sunshine in December
Duck Key, 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 4min
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 36min).
Average sunshine days in December
Duck Key, FL
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).
Average UV index in December
Duck Key, FL
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in December
Duck Key, FL
- Average cloud cover in December: 31
The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in December
Duck Key, 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).
Duck Key, Florida, USA
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