Click on a day for an hourly weather forecast
The temperatures in Rock Hill in September are comfortable with low of 19°C and and high up to 29°C.
You can expect about 3 to 8 days of rain in Rock Hill during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Rock Hill in September 2025.
If you’re planning to visit Rock Hill in the near future, we highly recommend that you review the 14 day weather forecast for Rock Hill before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 11° / 2° | 6 | 24 | 1 | 111 mm | Ok | Rock Hill in January |
| February | 13° / 4° | 7 | 20 | 1 | 121 mm | Bad | Rock Hill in February |
| March | 17° / 7° | 7 | 23 | 1 | 119 mm | Ok | Rock Hill in March |
| April | 22° / 12° | 6 | 24 | 0 | 132 mm | Good | Rock Hill in April |
| May | 27° / 16° | 7 | 24 | 0 | 138 mm | Good | Rock Hill in May |
| June | 31° / 20° | 6 | 24 | 0 | 123 mm | Good | Rock Hill in June |
| July | 33° / 22° | 7 | 24 | 0 | 131 mm | Ok | Rock Hill in July |
| August | 32° / 22° | 6 | 25 | 0 | 153 mm | Good | Rock Hill in August |
| September | 29° / 19° | 5 | 25 | 0 | 121 mm | Good | Rock Hill in September |
| October | 23° / 13° | 4 | 27 | 0 | 99 mm | Perfect | Rock Hill in October |
| November | 17° / 7° | 4 | 26 | 0 | 96 mm | Good | Rock Hill in November |
| December | 13° / 5° | 6 | 24 | 0 | 129 mm | Ok | Rock Hill in December |