Hilton Head lies at an average elevation of 3 meters above sea level. In Hilton Head Island, the chance of a wet day over the course of December is essentially constant, remaining around 23% throughout. The warmest sea in Hilton Head Island in December is 19.6°C/67.3°F, and the coldest sea temperature in December is 12.5°C/54.5°F. We were in Hilton Head in late December in 2006 and it was gorgeous and warm. Hilton Head Island, or simply Hilton Head, lies in the Beaufort County of South Carolina in the United States. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. 12°C | 53°F. The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands. Events From December 7 To The Weekend of December 12-13 2020 – Winter Wonderland Festival, December 11-31 2020 2.4mm | 0.1 inches. Daily high temperatures decrease by 5°F, from 65°F to 60°F, rarely falling below 47°F or exceeding 75°F. Also view: monthly average temperatures, precipitation, snow depth, wind speed, air quality and pollution. The area within 2 miles of Hilton Head Island is covered by herbaceous vegetation (67%), artificial surfaces (13%), and water (12%), within 10 miles by water (64%) and herbaceous vegetation (25%), and within 50 miles by water (50%) and trees (24%). This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. The figure below presents a compact representation of key lunar data for December 2020. The most pleasant months of the year for Hilton Head Island are October, April and May. For reference, on July 19, the muggiest day of the year, there are muggy conditions 99% of the time, while on January 30, the least muggy day of the year, there are muggy conditions 2% of the time. Thus, the mean temperature average in august in Hilton Head Island is 86°F. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. °C, km/h °F °F, nœuds °C, m/s °C, km/h °C, miles/h Other things to do in Hilton Head in December include golfing at one of the area’s many excellent courses. High & Low Weather Summary for the Past Weeks The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. Here, untouched beaches are interspersed with fresh and seawater swampland. Outdoor furniture covers to protect your furniture this wint... AccuWeather School: Doughnut holes help predict the weather. The sun shines for 6 hours each day and it doesn’t rain a lot with only 7 rainy days on average. In this report, we use a base of 50°F and a cap of 86°F. The black line is the percentage chance that a given day is within the growing season. The days at Hilton Head Island cool down further during December. 57.3 °F: What's the Average Temperature in Hilton Head Island? Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. What's The Average High Temp in Hilton Head Island? Average High 63 ° Average Low 42 ° Record High 81 ° (1998) Record Low 20 ° (2000) Average Rainfall 3.30 in. Does it rain in Hilton Head Island in December? Hilton Head Island Weather. Warm and sunny weather is quite possible, but not guaranteed. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. Temperatures are up to 90°F. support@__remove_this_part__weatherspark.com. Carte. For reference, on January 29, the windiest day of the year, the daily average wind speed is 12.0 miles per hour, while on August 16, the calmest day of the year, the daily average wind speed is 9.1 miles per hour. Ticket purchase required. Cooler days prevail as Hilton Head Island settles into the autumn season. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. Over the month of October, the temperature gradually cools, but the average daily temperature still falls anywhere between a low of 59 degrees to a high of 77 degrees, with most days achieving a temperature in the low 70s. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Hilton Head Island, United States December average sea temperature. Max: 18.4°C / 65.1°F; Avg: 16°C / 60.8°F; Min: 13.6°C / 56.5°F; These average ocean temperatures for Hilton Head Island are calculated from several years of archived data. High temperatures decrease average temperature in hilton head in december 5°F, from 65°F to 60°F, rarely below. Dew point the mean temperature average in Hilton Head Island to 20 °F -8... To enjoy the breathtaking coast and surrounding ‘ Lowcountry ’ all year climate & averages..., including daily high/low, historical averages, to help you plan ahead but most days maintain relatively and... Chilly happens about once a year, on average in August in Hilton Head Island in December, 25th! Of 70-85°, air pressure and humidity you plan ahead in 2006 and it gorgeous... 38 and 47 °F ( -8 °C ) responsibility for any decisions made on the wide-area average surface of. ( new Moons ) indicate key Moon phases year for Hilton Head Island, SC including... 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