Click on a day for an hourly weather forecast
The temperatures in Plettenberg Bay in September are usually low and can range between 14°C and 19°C.
You can expect about 3 to 8 days of rain in Plettenberg Bay 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 Plettenberg Bay in September 2025.
If you’re planning to visit Plettenberg Bay in the near future, we highly recommend that you review the 14 day weather forecast for Plettenberg Bay before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 19° | 3 | 29 | 0 | 41 mm | Perfect | Plettenberg Bay in January |
| February | 24° / 19° | 2 | 26 | 0 | 36 mm | Perfect | Plettenberg Bay in February |
| March | 24° / 18° | 2 | 29 | 0 | 44 mm | Perfect | Plettenberg Bay in March |
| April | 22° / 16° | 3 | 27 | 0 | 51 mm | Good | Plettenberg Bay in April |
| May | 21° / 15° | 3 | 28 | 0 | 52 mm | Good | Plettenberg Bay in May |
| June | 19° / 14° | 4 | 26 | 0 | 75 mm | Good | Plettenberg Bay in June |
| July | 18° / 13° | 4 | 27 | 0 | 84 mm | Good | Plettenberg Bay in July |
| August | 19° / 13° | 4 | 27 | 0 | 75 mm | Good | Plettenberg Bay in August |
| September | 19° / 14° | 3 | 27 | 0 | 63 mm | Good | Plettenberg Bay in September |
| October | 20° / 15° | 4 | 27 | 0 | 74 mm | Good | Plettenberg Bay in October |
| November | 21° / 16° | 4 | 26 | 0 | 64 mm | Good | Plettenberg Bay in November |
| December | 23° / 17° | 3 | 28 | 0 | 42 mm | Perfect | Plettenberg Bay in December |