December weather forecastAtlantis, FL
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Atlantis, Florida, with an average temperature varying between 68.2°F (20.1°C) and 75°F (23.9°C).Temperature
Atlantis observes a minor difference in average high-temperatures between November's 77.9°F (25.5°C) and December's 75°F (23.9°C). Atlantis, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at an agreeable 68.2°F (20.1°C).Humidity
The months with the highest humidity are June and December, with an average relative humidity of 76%.Rainfall
In Atlantis, in December, it is raining for 16.5 days, with typically 2.36" (60mm) of accumulated precipitation. In Atlantis, during the entire year, the rain falls for 238.3 days and collects up to 54.53" (1385mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 30min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:38 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 6h of sunshine.UV index
In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 6 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Atlantis, FL
- Average high temperature in December: 75°F
The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (72.5°F).
- Average low temperature in December: 68.2°F
The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).
Average pressure in December
Atlantis, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in December
Atlantis, FL
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
Atlantis, FL
- Average humidity in December: 76%
The months with the highest relative humidity are June and December (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Atlantis, FL
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is August (9.06").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in December
Atlantis, FL
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (13.3 days).
Average daylight in December /
Average sunshine in December
Atlantis, FL
- Average daylight in December: 10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).
Average sunshine days in December
Atlantis, FL
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is March (12.7 days).
The month with the least sunshine days is July (2.3 days).
Average UV index in December
Atlantis, FL
- Average UV index in December: 6
The months with the highest UV index are 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
Atlantis, FL
- Average cloud cover in December: 36
The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 29).
Average visibility in December
Atlantis, 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).
