Temperatures in December
It's cool to moderate in December in Hilton Head Island with an average temperature of 18°C. Temperatures this month range from a low of 14°C to a high of 20°C. At night, you can expect temperatures between 6°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Hilton Head Island in December. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of December
The month of December starts in Hilton Head Island with mild temperatures, averaging around 19°C during the day and nights close to 10°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-December
By mid-December, the average daytime temperature drops to around 18°C, with nights close to 8°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of December
By the end of December, the average daytime temperature in Hilton Head Island will be around 19°C, with nights close to 10°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in December
In December, there is an average of 79 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 27% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in December for Hilton Head Island. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Hilton Head Island in December |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 9°C | |
 High Temp |
20°C | 11°C | |
| Low Temp |
14°C | 8°C | |
 Total Precipitation |
79 mm | 67 mm | |
| Rainy Days |
8 days | 10 days | |
November
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is December a good time to visit Hilton Head Island?
Want nice weather? Then December is a great time to be in Hilton Head Island. You’ll have pleasant temperatures and not too much rain this month.
Check out the climate of Hilton Head Island for all months and discover the best travel time
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Daily Temperature in December in Hilton Head Island
This chart shows the average daily temperatures, both day and night, for each day in December in Hilton Head Island, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Hilton Head Island
The chart below shows the average daily precipitation in December for Hilton Head Island, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 8 days of rain in Hilton Head Island.
Daily UV Index in December in Hilton Head Island
This chart shows the average daily UV index in December in Hilton Head Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Hilton Head Island Over the Years
This chart shows the average temperature in December in Hilton Head Island, measured in degrees Celsius, over the past years.
Total Precipitation in December in Hilton Head Island Over the Years
This chart shows the average precipitation in December in Hilton Head Island, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Hilton Head Island
Click on a specific day in December for detailed info on the typical weather on that day in Hilton Head Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Hilton Head Island
Have you been to Hilton Head Island in December?
Share your weather experience in December in Hilton Head Island.
Average Weather in Hilton Head Island by Month
Click on a month below to see detailed weather info for Hilton Head Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Hilton Head Island for all months at once
