December weather forecast
Myrtle Island, FL

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Weather in December

The first month of the winter, December, is still a pleasant month in Myrtle Island, Florida, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 54°F (12.2°C).

Temperature

December brings a marginal elevation to an agreeable 70.7°F (21.5°C) from November's 74.8°F (23.8°C) in Myrtle Island's average high-temperatures. An average low-temperature of 54°F (12.2°C) is recorded during the nights in December in Myrtle Island.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Myrtle Island, in December, during 9.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 151.1 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Daylight

With an average of 10h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:03 am and sunset at 5:26 pm. On the last day of December, in Myrtle Island, sunrise is at 7:20 am and sunset at 5:37 pm EST.

Sunshine

The month with the least sunshine in Myrtle Island is December, with an average of 5.7h of sunshine.

UV index

In December, the average daily maximum UV index in Myrtle Island, Florida, is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 5 in December translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the usual temperature for Myrtle Island in December?

The high-temperature in Myrtle Island, Florida, during December is 70.7°F (21.5°C) and the low-temperature is 54°F (12.2°C). In October, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 89.6°F (32°C).

What is the average humidity in December in Myrtle Island?

In December, the average relative humidity in Myrtle Island is 76%.

How many days does it rain in December in Myrtle Island?

In Myrtle Island, Florida, in December, it is raining for 9.5 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the month with the shortest days in Myrtle Island?

The month with the shortest days in Myrtle Island is December, with an average of 10h and 18min of daylight.

What is the average length of the day in December in Myrtle Island?

In Myrtle Island, the average day length in December is 10h and 17min.

What time are sunrise and sunset in December in Myrtle Island?

On the first day of December in Myrtle Island, sunrise is at 7:03 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Myrtle Island?

With an average of 5.7h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Myrtle Island have in December?

In December, the average sunshine duration is 5.7h.

What is the UV index intensity in December in Myrtle Island?

The average daily maximum UV index in December in Myrtle Island, Florida, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Myrtle Island, FL

Average temperature in December - Myrtle Island, FL
  • Average high temperature in December: 70.7°F

The warmest month (with the highest average high temperature) is August (92.3°F).
The month with the lowest average high temperature is January (66.4°F).

  • Average low temperature in December: 54°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

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Average pressure in December
Myrtle Island, FL

Average pressure in December - Myrtle Island, FL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in December
Myrtle Island, FL

Average wind speed in December - Myrtle Island, FL
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is July (4mph).

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Average humidity in December
Myrtle Island, FL

Average humidity in December - Myrtle Island, FL
  • Average humidity in December: 76%

The months with the highest relative humidity are July, August and September (77%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in December
Myrtle Island, FL

Average rainfall in December - Myrtle Island, FL
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is July (2.68").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in December
Myrtle Island, FL

Average rainfall days in December - Myrtle Island, FL
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (8 days).

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Average daylight in December /
Average sunshine in December
Myrtle Island, FL

Average daylight in December / Average sunshine in December - Myrtle Island, FL
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in December
Myrtle Island, FL

Average sunshine days in December - Myrtle Island, FL
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (8.6 days).

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Average UV index in December
Myrtle Island, FL

Average UV index in December - Myrtle Island, FL
  • Average UV index in December: 5

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in December
Myrtle Island, FL

Average cloud cover in December - Myrtle Island, FL
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 32).

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Average visibility in December
Myrtle Island, FL

Average visibility in December - Myrtle Island, FL
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

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Myrtle Island, Florida, USA

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