Hilton Head Island, SC
Climate overview — based on NOAA 1991-2020 normals from BEAUFORT WWTP, SC US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Hilton Head Island has an annual average temperature of 67.8°F with about 0 inches of precipitation per year. The warmest month is July (average high 91.1°F), and the coldest is January (average low 41.1°F).
Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
32°F
warmest to coldest month
Best time to visit Hilton Head Island
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Hilton Head Island's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 13 | |
| 1900s | 20 | |
| 1910s | 20 | |
| 1920s | 44 | |
| 1930s | 77 | |
| 1940s | 52 | |
| 1950s | 48 | |
| 1960s | 28 | |
| 1970s | 30 | |
| 1980s | 13 | |
| 1990s | 15 | |
| 2000s | 6 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 60.8°F | 41.1°F | 51.0°F | in | — | — |
| February | 64.5°F | 43.7°F | 54.1°F | in | — | — |
| March | 71.5°F | 49.4°F | 60.4°F | in | — | — |
| April | 77.4°F | 56.4°F | 66.9°F | in | — | — |
| May | 83.6°F | 65.7°F | 74.6°F | in | — | — |
| June | 88.7°F | 71.8°F | 80.3°F | in | — | — |
| July | 91.1°F | 74.9°F | 83.0°F | in | — | — |
| August | 90.3°F | 74.5°F | 82.4°F | in | — | — |
| September | 85.9°F | 69.6°F | 77.8°F | in | — | — |
| October | 78.9°F | 60.7°F | 69.8°F | in | — | — |
| November | 70.1°F | 50.6°F | 60.4°F | in | — | — |
| December | 62.0°F | 44.0°F | 53.0°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when