December weather forecast
Mary Esther, FL

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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.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Mary Esther?

The high-temperature, in December, in Mary Esther, records 63.3°F (17.4°C), while the low-temperature is 51.6°F (10.9°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 96.8°F (36°C).

What is the most humid month in Mary Esther?

December is the most humid month, with an average relative humidity of 77%.

What is the average humidity in December in Mary Esther?

In December, the average relative humidity is 77%.

How many days does it rain in December in Mary Esther?

In Mary Esther, Florida, during December, the rain falls for 12.4 days and regularly aggregates up to 4.29" (109mm) of precipitation.

When it does not snow in Mary Esther?

March through December are months without snowfall in Mary Esther, Florida.

Does it snow in Mary Esther in December?

In Mary Esther, Florida, in December, it doesn't snow. In January, it regularly snows.

How cold is the water in December in Mary Esther?

In Mary Esther, in December, the average water temperature is 66.9°F (19.4°C). For most, swimming in 66.9°F (19.4°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the month with the shortest days in Mary Esther?

December has the shortest days of the year, with an average of 10h and 12min of daylight.

How many hours of daylight does Mary Esther have in December?

In December, the average day length in Mary Esther, Florida, is 10h and 13min.

When is the sunrise / sunset in December in Mary Esther?

In December, on the first day of the month, 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.

What are the months with the least sunshine in Mary Esther?

February and December, with an average of 5.5h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Mary Esther?

In December, the average sunshine duration in Mary Esther, Florida, is 5.5h.

What is the month with the lowest UV index in Mary Esther?

The months with the lowest UV index in Mary Esther are January, February and December, with an average maximum UV index of 4.

What is the UV index intensity in December in Mary Esther?

The average daily maximum UV index in December in Mary Esther is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mary Esther, FL

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Mary Esther, 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 3min

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 - 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 - 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 - 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 - 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).

Mary Esther, Florida, USA

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