Johannesburg in september: average Weather, Temperature and Climate
Weather in Johannesburg in september 2025
The weather in Johannesburg in september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather UV index: 6
Weather at 6am
65°F
Clear/Sunny
78% of time
14%
5%
3%
Weather at 12pm
81°F
Clear/Sunny
83% of time
13%
3%
2%
Weather at 6pm
70°F
Clear/Sunny
80% of time
13%
5%
2%
Weather at 3am
59°F
75%
15%
6%
3%
Evolution of daily average temperature and precipitation in Johannesburg in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Johannesburg in september.
The climate of Johannesburg in september is perfect
The climate in september in Johannesburg is dry ; it does not rain often (0.7in of rainfall over 1 days).
The climate good in this location the month of september. The high seasonal norm is 81°F. The minimum is 65°F. Thus, the mean temperature average in september in Johannesburg is 74°F. Note that seasonal normals are in contrast with those observed in Johannesburg in the month of september with a maximum record of 97°F in 2017 and a minimum record of 43°F in 2013. You can hope to have about 6 days with temperatures up to 86°F, or 20 of the month.
Day length in Johannesburg in september is 11:56. The sun rises at 06:05 and sunset is at 18:01.
With a perfect climate, the month of september is advisable to go in this locality in South Africa.
Seasonal average climate and temperature of Johannesburg in september
Check below seasonal norms These datas are generated from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 74°F | ||||
| Highest temperature | 81°F | ||||
| Lowest temperature | 65°F | ||||
| Highest record temperature | 97°F (2017) | ||||
| Lowest record temperature | 43°F (2013) | ||||
| Number of days at +86°F | 6 day(s) (20%) | ||||
| Number of days at +65°F | 29 day(s) (97%) | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 65°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.7in | ||||
| Number of days with rainfall | 1 day(s) (4%) | ||||
| Record daily rainfall | 1.3in (2012) | ||||
| Other climate data | |||||
| Humidity | 43% | ||||
| Visibility | 9.9km | ||||
| Cloud cover | 10% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:05 | ||||
| Time of sunset | 18:01 | ||||
| Length of day | 11:56 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in Johannesburg in september 2024:
50°F to 74°F
56°F to 76°F
58°F to 77°F
58°F to 76°F
59°F to 76°F
59°F to 79°F
58°F to 76°F
61°F to 79°F
61°F to 81°F
50°F to 68°F
52°F to 76°F
61°F to 81°F
65°F to 85°F
67°F to 86°F
67°F to 86°F
72°F to 79°F
61°F to 83°F
63°F to 83°F
63°F to 83°F
49°F to 61°F
45°F to 47°F
43°F to 65°F
49°F to 70°F
54°F to 76°F
63°F to 83°F
65°F to 85°F
63°F to 85°F
65°F to 86°F
67°F to 86°F
54°F to 72°F
Map: other cities in South Africa in september
Cities near Johannesburg:
| Soweto in september | perfect weather |
| Pretoria in september | perfect weather |
| Rustenburg in september | perfect weather |
| Potchefstroom in september | perfect weather |
| Standerton in september | perfect weather |
| Pilanesberg National Park in september | perfect weather |
| Modimolle in september | perfect weather |
| Thabazimbi in september | perfect weather |
| Ermelo in september | perfect weather |
| Marakele National Park in september | perfect weather |
| Welkom in september | perfect weather |
| Madikwe Game Reserve in september | perfect weather |
Click over cities on the map for information about the weather in september.
Johannesburg
perfect weather
good
tolerable
bad
very bad
Weather data for Johannesburg in september:
Weather data for Johannesburg for september are derived from an average of the weather forecast since 2009 in Johannesburg. There is a margin of error and these forecasts are to be considered as general information only. The weather in Johannesburg can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Johannesburg.