December weather forecast and climate
Big Coppitt Key, FL

Weather in December

December, the first month of the winter, in Big Coppitt Key, is also a moderately hot month, with average temperature fluctuating between 72.3°F (22.4°C) and 75.2°F (24°C).

Temperature

In Big Coppitt Key, the average high-temperature is essentially the same as in November - a still warm 75.2°F (24°C). The average low-temperature, in Big Coppitt Key, is 72.3°F (22.4°C).

Humidity

In Big Coppitt Key, Florida, the average relative humidity in December is 77%.

Rainfall

In Big Coppitt Key, in December, it is raining for 11.4 days, with typically 0.87" (22mm) of accumulated precipitation. In Big Coppitt Key, during the entire year, the rain falls for 171.1 days and collects up to 21.54" (547mm) of precipitation.

Ocean temperature

In Big Coppitt Key, in December, the average water temperature is 74.5°F (23.6°C).
Note: 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 74.5°F (23.6°C).

Daylight

The month with the shortest days is December, with an average of 10.6h of daylight.

Sunshine

The month with the least sunshine is December, with an average of 6.5h of sunshine.

UV index

The average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in December in Big Coppitt Key?

In Big Coppitt Key, in December, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 72.3°F (22.4°C).

What is the average humidity in December in Big Coppitt Key?

In December, the average relative humidity in Big Coppitt Key, Florida, is 77%.

How many days does it rain in December in Big Coppitt Key?

In Big Coppitt Key, in December, it is raining for 11.4 days, with typically 0.87" (22mm) of accumulated precipitation.

What is the ocean temperature in December in Big Coppitt Key?

In Big Coppitt Key, the average seawater temperature in December is 74.5°F (23.6°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 74.5°F (23.6°C).

What is the month with the shortest days in Big Coppitt Key?

December has the shortest days of the year in Big Coppitt Key, Florida, with an average of 10.6h of daylight.

How many hours of daylight does Big Coppitt Key have in December?

In Big Coppitt Key, the average length of the day in December is 10.6h.

What is the month with the least sunshine in Big Coppitt Key?

December has the least sunshine of the year in Big Coppitt Key, Florida, with an average of 6.5h of sunshine.

How long on average sun shines in December in Big Coppitt Key?

In December, the average sunshine in Big Coppitt Key, Florida, is 6.5h.

How high is the UV index in December in Big Coppitt Key?

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Big Coppitt Key, FL

Average temperature in December - Big Coppitt Key, FL
  • Average high temperature in December: 75.2°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in December: 72.3°F

The month with the highest average low temperature is August (83.1°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).

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Average pressure in December
Big Coppitt Key, FL

Average pressure in December - Big Coppitt Key, FL
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are September and October (29.93").

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Average wind speed in December
Big Coppitt Key, FL

Average wind speed in December - Big Coppitt Key, FL
  • Average wind speed in December: 13.8mph

The windiest month (with the highest average wind speed) is November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.4mph).

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Average humidity in December
Big Coppitt Key, FL

Average humidity in December - Big Coppitt Key, FL
  • Average humidity in December: 77%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are July, August and September (74%).

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Average rainfall in December
Big Coppitt Key, FL

Average rainfall in December - Big Coppitt Key, FL
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is September (3.54").
The driest month (with the least rainfall) is March (0.43").

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Average rainfall days in December
Big Coppitt Key, FL

Average rainfall days in December - Big Coppitt Key, FL
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is September (20.8 days).
The month with the least rainy days is March (9.4 days).

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Average sea temperature in December
Big Coppitt Key, FL

Average sea temperature in December - Big Coppitt Key, FL
  • Average sea temperature in December: 74.5°F

The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).

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Average daylight in December /
Average sunshine in December
Big Coppitt Key, FL

Average daylight in December / Average sunshine in December - Big Coppitt Key, FL
  • Average daylight in December: 10.6h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.6h).

  • Average sunshine in December: 6.5h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.5h).

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Average sunshine days in December
Big Coppitt Key, FL

Average sunshine days in December - Big Coppitt Key, FL
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is March (19.6 days).
The month with the least sunshine days is September (6.2 days).

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Average UV index in December
Big Coppitt Key, FL

Average UV index in December - Big Coppitt Key, FL
  • Average UV index in December: 6

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).

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Average cloud cover in December
Big Coppitt Key, FL

Average cloud cover in December - Big Coppitt Key, FL
  • Average cloud cover in December: 32

The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).

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Average visibility in December
Big Coppitt Key, FL

Average visibility in December - Big Coppitt Key, FL
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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