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South Africa weather

Weather in Johannesburg for September 2027

Your guide to Johannesburg weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Johannesburg at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 26.2 °C by the end of September.

    • Rain 🌧️

  • With an average of 4 rainy days, Johannesburg experiences minimal rainfall in September.

    • More

  • Is September a good time to visit Johannesburg? check out the best time to travel to Johannesburg page.

  • ✨ Is September a good time to visit Johannesburg? – Ask the AI Weatherman

Average dry days
26
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/13°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
33 %
Avg humidity

Johannesburg Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
25°
2
Sunny
25°
3
Sunny
27°
4
Sunny
26°
5
Sunny
25°
6
Patchy rain possible
25°
7
Patchy rain possible
23°
8
Sunny
23°
9
Sunny
26°
10
Sunny
25°
11
Sunny
27°
12
Sunny
26°
13
Sunny
24°
14
Patchy rain possible
25°
15
Sunny
27°
16
Sunny
27°
17
Patchy rain possible
27°
18
Sunny
25°
19
Sunny
26°
20
Partly cloudy
24°
21
Patchy rain possible
22°
22
Sunny
24°
23
Sunny
26°
24
Sunny
27°
25
Patchy rain possible
27°
26
Sunny
28°
27
Sunny
27°
28
Patchy rain possible
27°
29
Light rain
25°
30
Light rain
22°

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
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 25° /12° 0 mm 7
2 Sept. Sunny
Sunny
 25° /13° 0 mm 7
3 Sept. Sunny
Sunny
 27° /14° 0 mm 8
4 Sept. Sunny
Sunny
 26° /14° 0.6 mm 7
5 Sept. Sunny
Sunny
 25° /14° 0.1 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 25° /14° 1.5 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
 23° /13° 1.4 mm 6
8 Sept. Sunny
Sunny
 23° /13° 0.1 mm 7
9 Sept. Sunny
Sunny
 26° /13° 0.2 mm 7
10 Sept. Sunny
Sunny
 25° /13° 0 mm 7
11 Sept. Sunny
Sunny
 27° /12° 0 mm 8
12 Sept. Sunny
Sunny
 26° /13° 0 mm 8
13 Sept. Sunny
Sunny
 24° /13° 0 mm 7
14 Sept. Patchy rain possible
Patchy rain possible
 25° /14° 2.3 mm 7
15 Sept. Sunny
Sunny
 27° /14° 0 mm 8
16 Sept. Sunny
Sunny
 27° /15° 0 mm 8
17 Sept. Patchy rain possible
Patchy rain possible
 27° /14° 1.4 mm 7
18 Sept. Sunny
Sunny
 25° /13° 0.3 mm 7
19 Sept. Sunny
Sunny
 26° /14° 0.1 mm 8
20 Sept. Partly cloudy
Partly cloudy
 24° /12° 0.6 mm 7
21 Sept. Patchy rain possible
Patchy rain possible
 22° /12° 1.5 mm 6
22 Sept. Sunny
Sunny
 24° /12° 0.2 mm 6
23 Sept. Sunny
Sunny
 26° /14° 0.1 mm 7
24 Sept. Sunny
Sunny
 27° /15° 0 mm 7
25 Sept. Patchy rain possible
Patchy rain possible
 27° /14° 1.7 mm 7
26 Sept. Sunny
Sunny
 28° /14° 0.1 mm 8
27 Sept. Sunny
Sunny
 27° /15° 0.2 mm 7
28 Sept. Patchy rain possible
Patchy rain possible
 27° /15° 2.1 mm 7
29 Sept. Light rain
Light rain
 25° /14° 3 mm 7
30 Sept. Light rain
Light rain
 22° /13° 3 mm 6
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.
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Johannesburg in September - FAQ

What are the expected maximum and minimum temperatures in Johannesburg during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Johannesburg during September?
In September, Johannesburg can expect light to moderate rainfall, totaling 20.6 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.

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 20.6 mm of rainfall.

UV exposure in Johannesburg during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates 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.

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