December weather forecastFort Myers, FL
December
Weather in December
The year concludes with December, exhibiting the lowest average temperatures in Fort Myers, although the mercury never drops drastically. The rainfall is slightly higher than November, but overall, the weather remains dry and cool. The shorter daylight hours mark the return of the winter solstice. Despite the cooling trend, the sea temperature remains relatively comfortable, making beach activities still enjoyable. Overall, this final month ensures that the year ends on a peaceful and pleasant note in Fort Myers.Temperature
With the start of December, Fort Myers measures an average high-temperature of a still warm 74.8°F (23.8°C), not significantly differing from November's 78.3°F (25.7°C). During December, Fort Myers consistently records a temperature low averaging an enjoyable 61.7°F (16.5°C).Humidity
September and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Fort Myers, in December, during 7.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Fort Myers, Florida, during the entire year, the rain falls for 159.2 days and collects up to 23.54" (598mm) of precipitation.Ocean temperature
In Fort Myers, the average seawater temperature in December is 75.2°F (24°C).Note: Swimming in 75.2°F (24°C) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.
Daylight
The month with the shortest days is December, with an average of 10h and 30min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:45 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 6.7h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, an average UV index of 5 transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fort Myers, FL
- Average high temperature in December: 74.8°F
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is January (71.1°F).
- Average low temperature in December: 61.7°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (56.7°F).
Average pressure in December
Fort Myers, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in December
Fort Myers, FL
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are October and November (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in December
Fort Myers, FL
- Average humidity in December: 76%
The months with the highest relative humidity are September and December (76%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Fort Myers, FL
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and March (0.63").
Average rainfall days in December
Fort Myers, FL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is January (6.3 days).
Average sea temperature in December
Fort Myers, FL
- Average sea temperature in December: 75°F
The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest month (with the lowest average sea temperature) is February (70°F).
Average daylight in December /
Average sunshine in December
Fort Myers, 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 42min
The months with the most sunshine are May and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Fort Myers, FL
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in December
Fort Myers, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in December
Fort Myers, FL
- Average cloud cover in December: 29
The months with the most cloud cover are January and December (Cloud cover 29).
The months with the least cloud cover are March, April and May (Cloud cover 24).
Average visibility in December
Fort Myers, 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).
