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The temperatures in Stellenbosch in September are quite cold with temperatures between 7°C and 19°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Stellenbosch 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 Stellenbosch in September 2025.
If you’re planning to visit Stellenbosch in the near future, we highly recommend that you review the 14 day weather forecast for Stellenbosch before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 29° / 14° | 1 | 30 | 0 | 22 mm | Good | Stellenbosch in January |
| February | 29° / 14° | 1 | 27 | 0 | 14 mm | Good | Stellenbosch in February |
| March | 28° / 14° | 2 | 29 | 0 | 26 mm | Perfect | Stellenbosch in March |
| April | 25° / 12° | 3 | 27 | 0 | 68 mm | Perfect | Stellenbosch in April |
| May | 21° / 10° | 4 | 27 | 0 | 97 mm | Good | Stellenbosch in May |
| June | 17° / 7° | 7 | 23 | 0 | 223 mm | Ok | Stellenbosch in June |
| July | 17° / 6° | 5 | 26 | 0 | 132 mm | Good | Stellenbosch in July |
| August | 17° / 6° | 6 | 25 | 0 | 145 mm | Good | Stellenbosch in August |
| September | 19° / 7° | 4 | 26 | 0 | 80 mm | Good | Stellenbosch in September |
| October | 22° / 10° | 3 | 28 | 0 | 45 mm | Good | Stellenbosch in October |
| November | 25° / 12° | 3 | 27 | 0 | 51 mm | Perfect | Stellenbosch in November |
| December | 27° / 13° | 2 | 29 | 0 | 26 mm | Perfect | Stellenbosch in December |