Johannesburg Weather in September

South Africa · September climate averages and travel tips

Avg high26°C (78°F)
Avg low8°C (46°F)
Rainfall16 mm (0.6 in)
RatingExcellent 10/10

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 high26°C (78°F)
Average low8°C (46°F)
Daily mean16°C (61°F)
Rainfall16 mm (0.6 in)
Rainy days (1 mm+)3
Humidity38%
Cloud cover26%
Daylight11.9 hours
Est. sunshine9.7 hours/day
Wind10.6 km/h
vs August5°C warmer than August, with 11 mm more rain.

What to pack for Johannesburg in September

Johannesburg weather in other months

Jan27°C / 14°C126 mmFairFeb27°C / 14°C82 mmGoodMar26°C / 12°C76 mmExcellentApr23°C / 9°C51 mmExcellentMay20°C / 5°C16 mmExcellentJun17°C / 2°C7 mmExcellentJul18°C / 2°C3 mmExcellentAug21°C / 4°C5 mmExcellentSep26°C / 8°C16 mmExcellentOct27°C / 11°C55 mmExcellentNov27°C / 12°C92 mmGoodDec27°C / 14°C125 mmFair

← AugustBest time to visit JohannesburgOctober →

Nearby in September

Where else is good in September? See where to go in September.