December weather forecastNaples, FL
December
Weather in December
Rounding off the year, December brings the coldest average temperatures to Naples, Florida. A further decline in rainfall and temperatures underlines the arrival of winter. A remarkable drop in sea temperature to 71.2°F (21.8°C) suggests a seasonal shift in climate. The shorter daylight hours with relatively frequent sunshine add an element of charm to December’s weather. Conclusively, the month of December is characterised by cooler temperatures, modest rainfall and the start of winter's allure.Temperature
Naples greets December with an average high-temperature of a still moderately hot 74.8°F (23.8°C), marking a slight deviation from the preceding month. Naples witnesses an average low-temperature of 64.4°F (18°C) throughout the month of December.Humidity
The most humid month is December, with an average relative humidity of 76%.Rainfall
In December, the rain falls for 7.9 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. In Naples, Florida, during the entire year, the rain falls for 162.1 days and collects up to 21.69" (551mm) of precipitation.Ocean temperature
In December, the average ocean temperature is 71.2°F (21.8°C).Note: For most individuals, swimming in 71.2°F (21.8°C) is not enjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing control becomes increasingly difficult.
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 6:57 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:46 pm EST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
In Naples, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 6 during December leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Naples, FL
- Average high temperature in December: 74.8°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).
- Average low temperature in December: 64.4°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in December
Naples, FL
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.94"Hg).
Average wind speed in December
Naples, FL
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Naples, FL
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Naples, FL
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in December
Naples, FL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).
Average sea temperature in December
Naples, FL
- Average sea temperature in December: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (66.6°F).
Average daylight in December /
Average sunshine in December
Naples, 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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Naples, FL
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in December
Naples, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in December
Naples, FL
- Average cloud cover in December: 27
The month with the most cloud cover is January (Cloud cover 28).
The months with the least cloud cover are March and April (Cloud cover 22).
Average visibility in December
Naples, 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).
