Hilton Head Island, Sunday, 9 August, 17:22
Overcast. Feels like 99°. High 88°, low 75°.
In December, Hilton Head Island, SC averages a high of 60.6° and a low of 49.3°. About 3.2 inches of precipitation fall over the month (8 wet days). The record high is 77.5° (2025) and the record low 17.1° (1983). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 63° | 52.2° | 23% | 73.6° (1982) | 32° (1964) |
| 2 | 62.6° | 51.6° | 22% | 73.2° (2001) | 35.6° (1960) |
| 3 | 62.8° | 50.7° | 15% | 72.7° (1991) | 36.5° (1979) |
| 4 | 62.2° | 50.7° | 15% | 73.4° (1978) | 34.7° (2000) |
| 5 | 62.1° | 50.9° | 27% | 73.9° (1998) | 35.8° (1969) |
| 6 | 62.1° | 49.8° | 30% | 73.4° (1998) | 35.6° (2024) |
| 7 | 61.3° | 50.2° | 30% | 75.2° (2022) | 31.3° (1984) |
| 8 | 61.3° | 49.6° | 22% | 76.5° (2022) | 32.4° (2006) |
| 9 | 62.2° | 51.1° | 23% | 75.6° (1978) | 33.6° (1968) |
| 10 | 61.3° | 51.1° | 33% | 73.2° (1972) | 34.5° (1962) |
| 11 | 60.6° | 49.8° | 28% | 73.6° (1972) | 32.2° (1981) |
| 12 | 60.6° | 49.6° | 37% | 74.1° (2007) | 27.7° (1962) |
| 13 | 61.2° | 50.2° | 32% | 73.8° (2007) | 21° (1962) |
| 14 | 62.1° | 50.7° | 32% | 73.8° (2007) | 27.1° (2010) |
| 15 | 60.8° | 50° | 35% | 73.4° (1971) | 26.2° (2025) |
| 16 | 61.3° | 48.9° | 17% | 73.8° (1971) | 31.1° (1968) |
| 17 | 60.1° | 48.7° | 25% | 73.4° (1971) | 31.6° (1972) |
| 18 | 59.2° | 47.3° | 32% | 72.1° (2008) | 32.9° (1988) |
| 19 | 59.7° | 46.9° | 17% | 74.1° (1967) | 29.1° (1963) |
| 20 | 59° | 48.4° | 25% | 72.9° (1967) | 26.6° (2000) |
| 21 | 59.2° | 47.3° | 37% | 71.4° (2013) | 31.5° (2000) |
| 22 | 59.2° | 48.2° | 28% | 73.2° (1998) | 28.2° (1989) |
| 23 | 60.1° | 48.7° | 28% | 72.5° (1970) | 20.8° (1989) |
| 24 | 60.3° | 49.1° | 38% | 74.7° (2025) | 19.2° (2022) |
| 25 | 58.3° | 47.1° | 32% | 74.1° (1984) | 17.1° (1983) |
| 26 | 56.3° | 45.3° | 25% | 75.2° (2021) | 19.9° (1983) |
| 27 | 58.1° | 46° | 15% | 77.5° (2025) | 28.6° (1983) |
| 28 | 60.1° | 48.6° | 25% | 73.2° (2015) | 32.5° (2010) |
| 29 | 60.8° | 49.1° | 42% | 73.2° (2015) | 32.2° (1961) |
| 30 | 59.7° | 48.9° | 22% | 74.3° (2015) | 31.6° (1961) |
| 31 | 61.5° | 50.5° | 30% | 75.7° (2021) | 27° (2000) |