What is the average temperature in Johannesburg in September

The average temperature in Johannesburg in September for a typical day ranges from a high of 81°F (27°C) to a low of 48°F (9°C). Some would describe it as pleasantly warm with a gentle breeze.

What to wear in September

With an average high of 81°F (27°C) and a low of 48°F (9°C), it generally feels pleasantly warm with a gentle breeze. With that in mind, most people would dress in something light like your favourite t-shirt.