The official National Weather Service forecast for Hilton Head — 32.2163°N, 80.7526°W, 19.1 miles from I-95. Forecasts here are written by NWS CHS, this county’s forecast office.
| Beaufort County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 60 | 64 | 70 | 77 | 83 | 88 | 91 | 89 | 85 | 78 | 69 | 63 | 76 |
| Avg low °F | 40 | 43 | 49 | 56 | 64 | 71 | 74 | 74 | 69 | 59 | 49 | 43 | 58 |
| Precip in | 2.9 | 3.3 | 3.3 | 3.1 | 3.3 | 5.2 | 5.9 | 6.6 | 4.7 | 3.4 | 2.3 | 3.2 | 47.2 |
1996–2025 normals for Beaufort County — the climate division Hilton Head sits in. All-time county record high 102.5°F (1986-07-20); record low 6.5°F (1985-01-21). Source: NOAA / National Weather Service.