December weather forecastMary Esther, FL
December
Weather in December
The first month of the winter, December, is still a refreshing month in Mary Esther, Florida, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 51.6°F (10.9°C).Temperature
With the onset of December, the average high-temperature registers at an enjoyable 63.3°F (17.4°C), subtly different from November's 68.5°F (20.3°C). In the month of December, Mary Esther experiences an average low-temperature of 51.6°F (10.9°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In Mary Esther, in December, it is raining for 12.4 days, with typically 4.29" (109mm) of accumulated precipitation. In Mary Esther, during the entire year, the rain falls for 172.9 days and collects up to 38.03" (966mm) of precipitation.Snowfall
March through December are months without snowfall in Mary Esther.Ocean temperature
In December, the average ocean temperature in Mary Esther is 66.9°F (19.4°C).Note: The majority find it unenjoyable to swim in 66.9°F (19.4°C). Breathing becomes tougher as the water temperature descends under 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 December in Mary Esther, sunrise is at 6:26 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 4:56 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 5.5h of sunshine.UV index
The months with the lowest UV index in Mary Esther, Florida, are January, February and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mary Esther, FL
- Average high temperature in December: 63.3°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in December: 51.6°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in December
Mary Esther, FL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Mary Esther, FL
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Mary Esther, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Mary Esther, FL
- Average rainfall in December: 4.29"
The wettest month (with the highest rainfall) is August (5.24").
The driest month (with the least rainfall) is May (1.85").
Average rainfall days in December
Mary Esther, FL
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is November (8 days).
Average snowfall days in December
Mary Esther, FL
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Mary Esther, FL
- Average sea temperature in December: 66.9°F
The best month for swimming (with the highest average sea temperature) is August (86.2°F).
The coldest month (with the lowest average sea temperature) is February (62.3°F).
Average daylight in December /
Average sunshine in December
Mary Esther, FL
- Average daylight in December: 10h and 12min
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 30min
The months with the most sunshine are May and June (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Mary Esther, FL
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in December
Mary Esther, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in December
Mary Esther, FL
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 22).
Average visibility in December
Mary Esther, 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).
