‹ South Carolina weather by month
South Carolina weather in July
The state broadly agrees with itself in July: afternoons run 92° in Hilton Head Island and 88° in Charleston, with everywhere else in between.
Based on 3 weather stations. Three stations, all on the water — inland South Carolina and the upstate around Greenville run hotter in summer and colder on winter nights than any row here.
Charleston & the Lowcountry
Highs 88–92°, nights 75–77°, and 5.1–5.6 in of rain in a typical July.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Charleston | 88° / 77° | 8 | Nights stay warm here — the harbor never lets go. |
| Hilton Head Island | 92° / 75° | 8 | Peak everything. Beach at sunrise is the move. |
The Grand Strand
Highs near 88°, nights around 74°, and 5.4 in of rain in a typical July.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Myrtle Beach | 88° / 74° | 8 | Hot, packed, and loud; the water is the point. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.