December weather forecast and climate
North Key Largo, FL

Weather in December

December, the first month of the winter, in North Key Largo, is also a moderately hot month, with average temperature fluctuating between 76.6°F (24.8°C) and 67.1°F (19.5°C).

Temperature

In North Key Largo, the average high-temperature is almost the same as in November - a still warm 76.6°F (24.8°C). In North Key Largo, in December, the average low-temperature is 67.1°F (19.5°C).

Humidity

December is the most humid month in North Key Largo, with an average relative humidity of 75%.

Rainfall

In North Key Largo, during 14.2 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 225.9 rainfall days, and 40.91" (1039mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature in North Key Largo is 76.3°F (24.6°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.3°F (24.6°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

With an average of 10.6h of daylight, December has the shortest days of the year in North Key Largo, Florida.

Sunshine

With an average of 6.3h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in North Key Largo is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the most humid month in North Key Largo?

December is the most humid month in North Key Largo, Florida, with an average relative humidity of 75%.

What is the average humidity in December in North Key Largo?

In December, the average relative humidity in North Key Largo is 75%.

How much does it rain in North Key Largo in December?

In December, in North Key Largo, Florida, the rain falls for 14.2 days. Throughout December, 1.3" (33mm) of precipitation is accumulated.

What is the ocean temperature in December in North Key Largo?

In North Key Largo, the average seawater temperature in December is 76.3°F (24.6°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.3°F (24.6°C) water may be enjoyable.

What is the month with the shortest days in North Key Largo?

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

How many hours of daylight does North Key Largo have in December?

In North Key Largo, the average length of the day in December is 10.6h.

What is the month with the least sunshine in North Key Largo?

December has the least sunshine of the year in North Key Largo, with an average of 6.3h of sunshine.

How long on average sun shines in December in North Key Largo?

The average sunshine in December in North Key Largo is 6.3h.

How high is the UV index in December in North Key Largo?

In North Key Largo, Florida, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in December
North Key Largo, FL

Average temperature in December - North Key Largo, FL
  • Average high temperature in December: 76.6°F

The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (73.9°F).

  • Average low temperature in December: 67.1°F

The month with the highest average low temperature is August (81.7°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

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Average pressure in December
North Key Largo, FL

Average pressure in December - North Key Largo, FL
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are September and October (29.94").

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Average wind speed in December
North Key Largo, FL

Average wind speed in December - North Key Largo, FL
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
North Key Largo, FL

Average humidity in December - North Key Largo, 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 (68%).

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Average rainfall in December
North Key Largo, FL

Average rainfall in December - North Key Largo, FL
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is August (6.77").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days in December
North Key Largo, FL

Average rainfall days in December - North Key Largo, FL
  • Average rainfall days in December: 14.2 days

The month with the highest number of rainy days is August (26.8 days).
Months with the least rainy days are January and February (12.5 days).

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Average sea temperature in December
North Key Largo, FL

Average sea temperature in December - North Key Largo, FL
  • Average sea temperature in December: 76.3°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).

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Average daylight in December /
Average sunshine in December
North Key Largo, FL

Average daylight in December / Average sunshine in December - North Key Largo, 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: 6.3h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.3h).

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Average sunshine days in December
North Key Largo, FL

Average sunshine days in December - North Key Largo, FL
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (2.1 days).

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Average UV index in December
North Key Largo, FL

Average UV index in December - North Key Largo, FL
  • Average UV index in December: 6

Months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover in December
North Key Largo, FL

Average cloud cover in December - North Key Largo, FL
  • Average cloud cover in December: 32

The month with the most cloud cover is October (Cloud cover 36).
The month with the least cloud cover is April (Cloud cover 26).

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Average visibility in December
North Key Largo, FL

Average visibility in December - North Key Largo, 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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