Click on a day for an hourly weather forecast
The temperatures in Greenville (SC) in September are comfortable with low of 17°C and and high up to 29°C.
You can expect about 3 to 8 days of rain in Greenville (SC) 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 Greenville (SC) in September 2025.
If you’re planning to visit Greenville (SC) in the near future, we highly recommend that you review the 14 day weather forecast for Greenville (SC) before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 1° | 7 | 23 | 2 | 143 mm | Awful | Greenville (SC) in January |
| February | 12° / 3° | 8 | 19 | 1 | 157 mm | Bad | Greenville (SC) in February |
| March | 16° / 6° | 8 | 23 | 1 | 142 mm | Ok | Greenville (SC) in March |
| April | 21° / 10° | 8 | 23 | 0 | 155 mm | Ok | Greenville (SC) in April |
| May | 26° / 15° | 6 | 25 | 0 | 151 mm | Perfect | Greenville (SC) in May |
| June | 31° / 19° | 6 | 24 | 0 | 133 mm | Good | Greenville (SC) in June |
| July | 33° / 21° | 7 | 24 | 0 | 154 mm | Ok | Greenville (SC) in July |
| August | 32° / 20° | 6 | 25 | 0 | 146 mm | Good | Greenville (SC) in August |
| September | 29° / 17° | 5 | 25 | 0 | 123 mm | Good | Greenville (SC) in September |
| October | 23° / 12° | 5 | 26 | 0 | 115 mm | Perfect | Greenville (SC) in October |
| November | 16° / 6° | 5 | 25 | 0 | 124 mm | Good | Greenville (SC) in November |
| December | 12° / 4° | 7 | 23 | 1 | 165 mm | Bad | Greenville (SC) in December |