Johannesburg
September
Weather in Johannesburg for September 2026
Your guide to Johannesburg weather in September - trends and predictions
In general, the average temperature in Johannesburg at the beginning of September is 26.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 27.4 °C by the end of September.
With an average of 4 rainy days, Johannesburg experiences minimal rainfall in September.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
26°/14°
Temperatures
20 km/h
Avg max wind
30 %
Avg humidity
Johannesburg Weather September
Move between months or click on a day
Temperatures trend during September in Johannesburg
See the weather trend as well as the moving average line
September weather in Johannesburg day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 25° /11° | 0 mm | 7 | |
| 2 Sept. | Sunny | 25° /12° | 0 mm | 7 | |
| 3 Sept. | Sunny | 27° /14° | 0 mm | 8 | |
| 4 Sept. | Sunny | 27° /14° | 0 mm | 8 | |
| 5 Sept. | Sunny | 27° /14° | 0.1 mm | 7 | |
| 6 Sept. |  Patchy rain possible | 27° /14° | 0.5 mm | 7 | |
| 7 Sept. | Sunny | 25° /12° | 0.8 mm | 7 | |
| 8 Sept. | Sunny | 25° /13° | 0.1 mm | 7 | |
| 9 Sept. | Sunny | 27° /13° | 0.2 mm | 7 | |
| 10 Sept. | Sunny | 26° /13° | 0 mm | 7 | |
| 11 Sept. | Sunny | 27° /12° | 0 mm | 8 | |
| 12 Sept. | Sunny | 27° /13° | 0 mm | 8 | |
| 13 Sept. | Sunny | 25° /12° | 0 mm | 7 | |
| 14 Sept. | Sunny | 26° /13° | 0 mm | 7 | |
| 15 Sept. | Sunny | 28° /14° | 0 mm | 8 | |
| 16 Sept. | Sunny | 28° /15° | 0 mm | 8 | |
| 17 Sept. | Sunny | 27° /13° | 0.1 mm | 8 | |
| 18 Sept. | Sunny | 26° /13° | 0 mm | 7 | |
| 19 Sept. | Sunny | 28° /14° | 0.1 mm | 8 | |
| 20 Sept. |  Partly cloudy | 25° /12° | 0.7 mm | 7 | |
| 21 Sept. | Sunny | 23° /12° | 1.8 mm | 6 | |
| 22 Sept. | Sunny | 25° /12° | 0 mm | 7 | |
| 23 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 24 Sept. | Sunny | 28° /14° | 0 mm | 8 | |
| 25 Sept. | Sunny | 28° /14° | 1.9 mm | 7 | |
| 26 Sept. | Sunny | 28° /14° | 0 mm | 8 | |
| 27 Sept. | Sunny | 27° /15° | 0.2 mm | 7 | |
| 28 Sept. |  Moderate rain at times | 28° /15° | 1 mm | 7 | |
| 29 Sept. | Sunny | 28° /14° | 2.1 mm | 8 | |
| 30 Sept. | Sunny | 25° /13° | 0.6 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Johannesburg in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Johannesburg forecast closer to your planned date for the most up-to-date weather information.
Change Month
Johannesburg in September - FAQ
What are the expected maximum and minimum temperatures in Johannesburg during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Johannesburg during September?
Expect minimal rainfall in Johannesburg during September, with a total of 10.4 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Johannesburg during September?
The average wind speed in Johannesburg during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Johannesburg
Explore the daily rainfall trends and prepare for Johannesburgs September weather 💧
Typically, Johannesburg has 4 rainy days in September with a total of 10.4 mm of rainfall.
UV exposure in Johannesburg during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Johannesburg weather pages
You are here
Where is Johannesburg?Get accurate weather forecasts for Johannesburg, located at latitude -26.202 and longitude 28.044. Stay updated with localized weather information tailored for Johannesburg.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.