Click on a day for an hourly weather forecast
The temperatures in Greenville in September are comfortable with low of 19°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Greenville 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 in September 2025.
If you’re planning to visit Greenville in the near future, we highly recommend that you review the 14 day weather forecast for Greenville before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 1° | 5 | 24 | 2 | 93 mm | Bad | Greenville in January |
| February | 12° / 3° | 5 | 21 | 2 | 98 mm | Bad | Greenville in February |
| March | 16° / 6° | 6 | 24 | 1 | 97 mm | Good | Greenville in March |
| April | 21° / 11° | 6 | 24 | 0 | 115 mm | Good | Greenville in April |
| May | 26° / 16° | 8 | 23 | 0 | 150 mm | Good | Greenville in May |
| June | 29° / 20° | 8 | 22 | 0 | 157 mm | Ok | Greenville in June |
| July | 31° / 22° | 10 | 21 | 0 | 160 mm | Ok | Greenville in July |
| August | 31° / 21° | 10 | 21 | 0 | 163 mm | Ok | Greenville in August |
| September | 28° / 19° | 6 | 24 | 0 | 169 mm | Perfect | Greenville in September |
| October | 22° / 13° | 3 | 28 | 0 | 89 mm | Good | Greenville in October |
| November | 16° / 7° | 5 | 25 | 0 | 96 mm | Good | Greenville in November |
| December | 13° / 5° | 6 | 24 | 0 | 92 mm | Ok | Greenville in December |