Johannesburg Weather in September
South Africa · September climate averages and travel tips
Johannesburg in September sees daytime temperatures around 26°C (78°F), dropping to about 8°C (46°F) at night. September is spring in South Africa. The month is very dry, with about 16 mm (0.6 in) of rain spread over 3 days. The air is dry, with average humidity of just 38%. You get roughly 11.9 hours of daylight and mostly clear skies.
Is September a good time to visit Johannesburg?
Yes — September is one of the best months to visit Johannesburg. The weather rates excellent (10/10) on our comfort score.
Visiting Johannesburg in September
Spring in the city
September feels warm and bright in Johannesburg. Afternoons are good for walking around Constitution Hill or exploring the street art and cafés in Maboneng. Evenings cool off, so outdoor dinners can feel chilly once the sun drops.
Rain is limited, with showers on only a few days, so you're unlikely to lose much sightseeing time to wet weather. The dry air and clear skies also suit a day trip to the Cradle of Humankind. Skip long, exposed walks in the afternoon if you find strong sun tiring.
Heritage Day
Heritage Day falls on 24 September, a public holiday across South Africa. You may see local celebrations and braais, the South African word for barbecues. It's a good time to try a meal with pap, a maize dish often served alongside grilled meat.
If you hate crowds, visit popular museums and restaurants outside the holiday itself. Some businesses may close or change their hours that day.
Crowds and local tips
September is a pleasant time to visit, but it's not as quiet as the colder winter months. Spring brings more visitors, while the biggest holiday rush usually comes later, around December. Prices can be higher than in quieter months, though September isn't generally the peak season.
Travelling with kids? The Johannesburg Zoo is a comfortable choice on a sunny day, with enough shade for breaks.
For a practical city tip, use the Gautrain to reach Sandton from the airport, then connect to Rosebank. The train won't take you to every sight, but it helps you avoid traffic on that busy route. In Rosebank, the mall and nearby cafés make an easy stop before heading back into the city.
September weather at a glance
| Average high | 26°C (78°F) |
|---|---|
| Average low | 8°C (46°F) |
| Daily mean | 16°C (61°F) |
| Rainfall | 16 mm (0.6 in) |
| Rainy days (1 mm+) | 3 |
| Humidity | 38% |
| Cloud cover | 26% |
| Daylight | 11.9 hours |
| Est. sunshine | 9.7 hours/day |
| Wind | 10.6 km/h |
| vs August | 5°C warmer than August, with 11 mm more rain. |
What to pack for Johannesburg in September
- T-shirts plus a light layer for the evening
- a sweater for cool nights
Johannesburg weather in other months
← AugustBest time to visit JohannesburgOctober →
Nearby in September
- Soweto27°C · 15 mm
- Pretoria29°C · 12 mm
- Gaborone32°C · 8 mm
- Mbabane27°C · 43 mm
- Maseru24°C · 19 mm
- Matola29°C · 35 mm
Where else is good in September? See where to go in September.