December weather forecastNorth Key Largo, FL
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 10h and 36min
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 18min
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: 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: 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: 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: 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).
