Click on a day for an hourly weather forecast
The temperatures in Grahamstown in September are comfortable with low of 15°C and and high up to 19°C.
You can expect about 3 to 8 days of rain in Grahamstown 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 Grahamstown in September 2025.
If you’re planning to visit Grahamstown in the near future, we highly recommend that you review the 14 day weather forecast for Grahamstown before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 20° | 2 | 29 | 0 | 49 mm | Perfect | Grahamstown in January |
| February | 24° / 20° | 3 | 25 | 0 | 60 mm | Perfect | Grahamstown in February |
| March | 24° / 20° | 4 | 28 | 0 | 60 mm | Perfect | Grahamstown in March |
| April | 22° / 18° | 3 | 27 | 0 | 62 mm | Good | Grahamstown in April |
| May | 21° / 17° | 3 | 28 | 0 | 52 mm | Good | Grahamstown in May |
| June | 20° / 15° | 3 | 27 | 0 | 63 mm | Good | Grahamstown in June |
| July | 19° / 15° | 3 | 28 | 0 | 75 mm | Good | Grahamstown in July |
| August | 19° / 15° | 3 | 28 | 0 | 64 mm | Good | Grahamstown in August |
| September | 19° / 15° | 3 | 27 | 0 | 52 mm | Good | Grahamstown in September |
| October | 20° / 16° | 4 | 27 | 0 | 71 mm | Good | Grahamstown in October |
| November | 21° / 17° | 4 | 26 | 0 | 57 mm | Good | Grahamstown in November |
| December | 22° / 19° | 3 | 28 | 0 | 49 mm | Good | Grahamstown in December |