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 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
With the onset of December, Myrtle Island's average high-temperature clocks in at a pleasant 70.7°F (21.5°C), showing a minor fluctuation from the previous month. Myrtle Island, during December, witnesses an average low-temperature of 54°F (12.2°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Myrtle Island, Florida, in December, it is raining for 9.5 days, with typically 1.42" (36mm) of accumulated precipitation. In Myrtle Island, during the entire year, the rain falls for 151.1 days and collects up to 17.99" (457mm) of precipitation.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.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.
Sunshine
December has the least sunshine of the year, with an average of 5.7h of sunshine.UV index
In December, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in December interprets into the following advice:
Make use of precautions - It is urged to ward off sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Myrtle Island in December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Myrtle Island have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Myrtle Island?
How long on average sun shines in December?
What is the UV index reading in December?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
Myrtle Island, Florida, USA
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