South Africa in September: where is it warmest?
In September, Pretoria is the warmest place with 27 °C by day, Stellenbosch the coolest with 18 °C. 9 of 10 destinations have good holiday weather.
All destinations in September, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Pretoria | 97 | 27° | – | 8 h | 3 |
| Johannesburg | 96 | 24° | – | 8 h | 4 |
| Soweto | 96 | 24° | – | 8 h | 3 |
| Pietermaritzburg | 76 | 23° | – | 6 h | 11 |
| Durban | 59 | 23° | 21° | 6 h | 8 |
| East London | 86 | 22° | 20° | 7 h | 8 |
| Gqeberha | 89 | 20° | 17° | 8 h | 7 |
| Orania | 97 | 18° | – | 8 h | 2 |
| Cape Town | 89 | 18° | 15° | 8 h | 7 |
| Stellenbosch | 85 | 18° | – | 8 h | 9 |
South Africa in September: quick answers
South Africa in September: where is it warmest?
The warmest places in September are Pretoria (27 °C), Johannesburg (24 °C) and Soweto (24 °C).
South Africa in September: where is the sea warmest?
The sea is warmest at Durban (21 °C), East London (20 °C) and Gqeberha (17 °C).
South Africa in September: where is the weather best?
The best holiday weather in September – warm, sunny and dry – is in Pretoria, Orania and Johannesburg.
South Africa month by month
South Africa: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences