December weather forecast
North Key Largo, FL

Share

Weather in December

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

Temperature

North Key Largo's average high-temperature in December is a still moderately hot 76.6°F (24.8°C), indicating a subtle variation from November. During the month of December, the temperature in North Key Largo generally drops to a low average of 67.1°F (19.5°C).

Humidity

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

Rainfall

In North Key Largo, during December, the rain falls for 14.2 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 225.9 rainfall days, and 40.91" (1039mm) of precipitation is accumulated.

Ocean temperature

In North Key Largo, the average seawater temperature in December is 76.3°F (24.6°C).
Note: For someone sensitive to cold, swimming in 76.3°F (24.6°C) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 77°F (25°C) and 82.4°F (28°C).)

Daylight

With an average of 10h and 36min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:50 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:42 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 6.3h of sunshine.

UV index

In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Boost your sun resistance with garments that are densely woven yet spacious. Watch out! Sand and water enhance the UV exposure you receive.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

In North Key Largo, in December, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 67.1°F (19.5°C). In October, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 91.4°F (33°C).

What is the most humid month?

With an average relative humidity of 75%, December is the most humid month.

What is the average humidity in December?

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

How many days does it rain 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 December, the average ocean temperature 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?

With an average of 10h and 36min of daylight, December has the shortest days of the year.

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

The average day length in December in North Key Largo, Florida, is 10h and 36min.

What time are sunrise and sunset in December?

On the first day of December in North Key Largo, sunrise is at 6:50 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:42 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 6.3h of sunshine.

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

The average sunshine duration in December is 6.3h.

What is the UV index intensity in December?

The average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health risk from 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).

Average pressure in December
North Key Largo, FL

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

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%).

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").

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).
The months with the least rainy days are January and February (12.5 days).

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).

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: 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 18min).

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).

Average UV index in December
North Key Largo, FL

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

The 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).

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).

Average visibility in December
North Key Largo, FL

Average visibility in December - North Key Largo, 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).

North Key Largo, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location