December weather forecast
Plantation Key, FL

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Weather in December

The first month of the winter, December, is also a moderately hot month in Plantation Key, Florida, with an average temperature varying between 71.1°F (21.7°C) and 75.2°F (24°C).

Temperature

December's arrival shows an average high-temperature of a still moderately hot 75.2°F (24°C), hardly different from the previous month. The nights of December in Plantation Key, Florida, are characterized by an average low-temperature of 71.1°F (21.7°C), subtly descending from daytime highs.

Humidity

The months with the highest humidity are February, June and December, with an average relative humidity of 76%.

Rainfall

In Plantation Key, in December, during 12.5 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature in Plantation Key is 76.5°F (24.7°C).
Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 76.5°F (24.7°C) waters might be just right. Remember, Olympic swimmers are used to waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

December has the shortest days of the year, with an average of 10h and 36min of daylight.
On the first day of December in Plantation Key, Florida, sunrise is at 6:50 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:44 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 6.4h of sunshine.

UV index

In December, the average daily maximum UV index in Plantation Key is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 suggests this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Plantation Key?

In Plantation Key, in December, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 71.1°F (21.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in October is evaluated at 87.8°F (31°C).

What are the most humid months in Plantation Key?

The months with the highest humidity in Plantation Key are February, June and December, with an average relative humidity of 76%.

What is the average humidity in December in Plantation Key?

In Plantation Key, the average relative humidity in December is 76%.

How many days does it rain in December in Plantation Key?

In December, the rain falls for 12.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

What is the water temperature in December in Plantation Key?

In December, the average ocean 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).

What is the month with the shortest days in Plantation Key?

The month with the shortest days in Plantation Key, Florida, is December, with an average of 10h and 36min of daylight.

What is the average length of the day in December in Plantation Key?

In December, the average day length in Plantation Key is 10h and 37min.

What time are sunrise and sunset in December in Plantation Key?

On the first day of December, sunrise is at 6:50 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:44 pm EST.

What is the month with the least sunshine in Plantation Key?

With an average of 6.4h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Plantation Key?

In December, the average sunshine duration in Plantation Key, Florida, is 6.4h.

What is the UV index reading in December in Plantation Key?

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

Average temperature in December
Plantation Key, FL

Average temperature in December - Plantation Key, FL
  • Average high temperature in December: 75.2°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 (72.7°F).

  • Average low temperature in December: 71.1°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 (66.9°F).

Average pressure in December
Plantation Key, FL

Average pressure in December - Plantation Key, FL
  • Average pressure in December: 30.07"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
Plantation Key, FL

Average wind speed in December - Plantation Key, FL
  • Average wind speed in December: 12.4mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in December
Plantation Key, FL

Average humidity in December - Plantation Key, FL
  • Average humidity in December: 76%

The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

Average rainfall in December
Plantation Key, FL

Average rainfall in December - Plantation Key, FL
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

Average rainfall days in December
Plantation Key, FL

Average rainfall days in December - Plantation Key, FL
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

Average sea temperature in December
Plantation Key, FL

Average sea temperature in December - Plantation 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
Plantation Key, FL

Average daylight in December / Average sunshine in December - Plantation 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 2min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in December
Plantation Key, FL

Average sunshine days in December - Plantation Key, FL
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

Average UV index in December
Plantation Key, FL

Average UV index in December - Plantation 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
Plantation Key, FL

Average cloud cover in December - Plantation Key, FL
  • Average cloud cover in December: 33

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
Plantation Key, FL

Average visibility in December - Plantation 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).

Plantation Key, Florida, USA

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