Johannesburg
August
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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31
Dry days
0
Rainy days
0
Snow days
21°/9°
Temperatures
16 km/h
Avg max wind
30 %
Avg humidity
Johannesburg in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2 18° | 3 20° | ||||
| 4  20° | 5 19° | 6 19° | 7 21° | 8 22° | 9 22° | 10  21° |
| 11 22° | 12 21° | 13 22° | 14 22° | 15 23° | 16 21° | 17 22° |
| 18 24° | 19 25° | 20 24° | 21 26° | 22 26° | 23 23° | 24 23° |
| 25 25° | 26 22° | 27 24° | 28 23° | 29 22° | 30 18° | 31 21° |
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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 | 19° /5° | 0 mm | 6 | |
| 2 Aug. | Sunny | 18° /7° | 0 mm | 6 | |
| 3 Aug. | Sunny | 20° /8° | 0 mm | 6 | |
| 4 Aug. | Overcast | 20° /8° | 0 mm | 6 | |
| 5 Aug. | Sunny | 19° /9° | 0 mm | 6 | |
| 6 Aug. | Sunny | 19° /8° | 0 mm | 6 | |
| 7 Aug. | Sunny | 21° /8° | 0 mm | 7 | |
| 8 Aug. | Sunny | 22° /9° | 0 mm | 7 | |
| 9 Aug. | Sunny | 22° /10° | 0 mm | 7 | |
| 10 Aug. | Partly cloudy | 21° /9° | 0 mm | 6 | |
| 11 Aug. | Partly cloudy | 22° /10° | 0 mm | 7 | |
| 12 Aug. | Sunny | 21° /9° | 0 mm | 7 | |
| 13 Aug. | Sunny | 22° /10° | 0 mm | 7 | |
| 14 Aug. | Sunny | 22° /11° | 0 mm | 7 | |
| 15 Aug. | Sunny | 23° /11° | 0 mm | 7 | |
| 16 Aug. | Sunny | 21° /10° | 0 mm | 7 | |
| 17 Aug. | Overcast | 22° /10° | 0 mm | 6 | |
| 18 Aug. | Partly cloudy | 24° /12° | 0 mm | 7 | |
| 19 Aug. | Sunny | 25° /12° | 0 mm | 8 | |
| 20 Aug. | Partly cloudy | 24° /11° | 0 mm | 7 | |
| 21 Aug. | Sunny | 26° /13° | 0 mm | 8 | |
| 22 Aug. | Sunny | 26° /13° | 0 mm | 8 | |
| 23 Aug. | Sunny | 23° /10° | 0 mm | 7 | |
| 24 Aug. | Sunny | 23° /10° | 0 mm | 7 | |
| 25 Aug. | Overcast | 25° /13° | 0 mm | 7 | |
| 26 Aug. | Partly cloudy | 22° /12° | 0 mm | 7 | |
| 27 Aug. | Sunny | 24° /11° | 0 mm | 7 | |
| 28 Aug. | Sunny | 23° /10° | 0 mm | 7 | |
| 29 Aug. | Sunny | 22° /10° | 0 mm | 7 | |
| 30 Aug. | Sunny | 18° /10° | 0 mm | 5 | |
| 31 Aug. | 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.
UV exposure in Johannesburg during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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