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Weather in Johannesburg for August 2025

Your guide to Johannesburg weather in August - trends and predictions
  • In general, the average temperature in Johannesburg at the beginning of August is 19.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 22.1 °C by the end of August.

  • Precipitation in Johannesburg during August is a rare event, with an average of fewer than 2 rainy days.

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Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/9°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
30 %
Avg humidity

Johannesburg in August average weather

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Temperatures trend during August in Johannesburg

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
1 Aug. Sunny
Sunny
19° /5° 0 mm 6
2 Aug. Sunny
Sunny
18° /7° 0 mm 6
3 Aug. Sunny
Sunny
20° /8° 0 mm 6
4 Aug. Overcast
Overcast
20° /8° 0 mm 6
5 Aug. Sunny
Sunny
19° /9° 0 mm 6
6 Aug. Sunny
Sunny
19° /8° 0 mm 6
7 Aug. Sunny
Sunny
21° /8° 0 mm 7
8 Aug. Sunny
Sunny
22° /9° 0 mm 7
9 Aug. Sunny
Sunny
22° /10° 0 mm 7
10 Aug. Partly cloudy
Partly cloudy
21° /9° 0 mm 6
11 Aug. Partly cloudy
Partly cloudy
22° /10° 0 mm 7
12 Aug. Sunny
Sunny
21° /9° 0 mm 7
13 Aug. Sunny
Sunny
22° /10° 0 mm 7
14 Aug. Sunny
Sunny
22° /11° 0 mm 7
15 Aug. Sunny
Sunny
23° /11° 0 mm 7
16 Aug. Sunny
Sunny
21° /10° 0 mm 7
17 Aug. Overcast
Overcast
22° /10° 0 mm 6
18 Aug. Partly cloudy
Partly cloudy
24° /12° 0 mm 7
19 Aug. Sunny
Sunny
25° /12° 0 mm 8
20 Aug. Partly cloudy
Partly cloudy
24° /11° 0 mm 7
21 Aug. Sunny
Sunny
26° /13° 0 mm 8
22 Aug. Sunny
Sunny
26° /13° 0 mm 8
23 Aug. Sunny
Sunny
23° /10° 0 mm 7
24 Aug. Sunny
Sunny
23° /10° 0 mm 7
25 Aug. Overcast
Overcast
25° /13° 0 mm 7
26 Aug. Partly cloudy
Partly cloudy
22° /12° 0 mm 7
27 Aug. Sunny
Sunny
24° /11° 0 mm 7
28 Aug. Sunny
Sunny
23° /10° 0 mm 7
29 Aug. Sunny
Sunny
22° /10° 0 mm 7
30 Aug. Sunny
Sunny
18° /10° 0 mm 5
31 Aug. Sunny
Sunny
21° /10° 0 mm 6
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Important Notice
Our weather forecast for Johannesburg in August 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.

Johannesburg in August - FAQ

What are the expected maximum and minimum temperatures in Johannesburg during August?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Johannesburg during August?
Rainfall in Johannesburg during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Johannesburg during August?
The average wind speed in Johannesburg during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

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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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