Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In December, Jacksonville Beach's weather conditions record an average high-temperature of an enjoyable 67.1°F (19.5°C), demonstrating little divergence from the preceding month. Throughout the December nights, Jacksonville Beach encounters a low-temperature of 55.4°F (13°C).Humidity
August and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 185.5 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and December. The months with the most snowfall days are January and December, with an average of 0.1 snowfall days.Ocean temperature
In Jacksonville Beach, in December, the average water temperature is 64.9°F (18.3°C).Note: Most people find swimming in 64.9°F (18.3°C) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 69.8°F (21°C).
Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:04 am and sunset at 5:24 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:35 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during December translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
When does it start snowing?
What is the ocean temperature in December?
What is the month with the shortest days?
How many hours of daylight does Jacksonville Beach have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Jacksonville Beach have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Jacksonville Beach, FL
- Average high temperature in December: 67.1°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (63.3°F).
- Average low temperature in December: 55.4°F
The months with the highest average low temperature are July and August (77.5°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in December
Jacksonville Beach, FL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are August and September (29.98"Hg).
Average wind speed in December
Jacksonville Beach, FL
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are January, March, April, October and November (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Jacksonville Beach, FL
- Average humidity in December: 76%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Jacksonville Beach, FL
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in December
Jacksonville Beach, FL
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is February (9.8 days).
Average snowfall days in December
Jacksonville Beach, FL
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Jacksonville Beach, FL
- Average sea temperature in December: 64.8°F
The best month for swimming (with the highest average sea temperature) is August (83.2°F).
The coldest months (with the lowest average sea temperature) are January and February (60.7°F).
Average daylight in December /
Average sunshine in December
Jacksonville Beach, FL
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in December
Jacksonville Beach, FL
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in December
Jacksonville Beach, FL
- Average UV index in December: 4
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 December (UV index 4).
Average cloud cover in December
Jacksonville Beach, FL
- Average cloud cover in December: 38
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in December
Jacksonville Beach, 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).
Jacksonville Beach, Florida, USA
Weather forecast for your location
2. Allow the app to use your location