If you're looking for a destination with great weather in August, look no more – Johannesburg is a perfect choice. Expect average maximum temperatures of +68°F and plenty of sunshine, with around 23 sunny days. Just keep in mind that there may be some rainfall, with approximately 12 mm of precipitation over an average of 1 rainy days. So, pack your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+68°F
Avg. max. temperature
+23°F
Min.
+82°F
Max.
12 mm
Total precipitation
50%
Avg. humidity
1 m/s
Avg. wind
23 ☀️
Sunny Days
7 ⛅️
Cloudy
1 🌦
Rainy
Our opinion: Johannesburg has great weather in August.
Average temperature in Johannesburg in August
Here are the expected maximum, average and minimum temperatures in Johannesburg for August based on the historical data.
Last Year
Historical Data
Going from a maximum of +75°F during the day to a minimum of +32°F during the night, the temperature in August averages around +68°F.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +64°F to +61°F.
Is Johannesburg warm or cold in August?
Johannesburg is typically mild in August.
Maximum temperatures go up compared to the previous month from +63°F to +68°F. The minimum temperature also goes up from +37°F to +41°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how August is compared to other months in Johannesburg:
Climate in Johannesburg in August
Johannesburg weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+63°F
+68°F
+73°F
Min. temperature
+23°F
+23°F
+30°F
Max. temperature
+77°F
+82°F
+90°F
Rainfall
4 mm
12 mm
28 mm
Wind
1 m/s
1 m/s
1 m/s
Humidity
55%
50%
48%
Air pressure
1024 HPa
1021 HPa
1019 HPa
Sunny days
25
23
19
Cloudy days
5
7
9
Rainy days
1
1
2
Snowy days
0
0
0
August weather is still as great as in July.It’s getting warmer as August arrives. The average maximum temperature goes up from +63°F to +68°F during the day.Prepare for more rain. Average rainfall goes from 4 mm to 12 mm.It feels drier, as humidity decreases from 55% to 50%.The average wind speed doesn’t change much during August, staying around 1 m/s.The days becoming less sunny, going from 25 sunny days in July to 23 in August.
Next month (September) brings a further decline in the weather.
Wind speed in Johannesburg in August based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Johannesburg is gradually decreasing during August, going from 2 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Johannesburg based on historical data.
Last Year
Historical Data
Typically, there is a 3% chance of rain on an average day in August, with total rainfall of approximately 6 mm. The maximum amount of rainfall per day is around 6 mm, which is considered light rain.Johannesburg is amazing in August with as little as 1 rainy days on average, so plan adventures in the great outdoors.
Here’s how August is compared with other months in the amount of precipitation, total mm:
Johannesburg wettest month is December, where a typical day has a 45% chance of precipitation and 148 mm of rainfall per day. July, on the other hand, is the driest month with a mere 3% chance of precipitation and 4 mm of rainfall per day.
How was the weather last August in Johannesburg?
This is the weather in Johannesburg in August 2023:
1 August
☀️
+64°F
2 August
☁️
+60°F
3 August
🌧️
+56°F
4 August
☀️
+67°F
5 August
☀️
+72°F
6 August
☀️
+72°F
7 August
☀️
+73°F
8 August
☀️
+64°F
9 August
☀️
+68°F
10 August
☀️
+71°F
11 August
☀️
+72°F
12 August
☀️
+74°F
13 August
☀️
+75°F
14 August
☀️
+61°F
15 August
☀️
+60°F
16 August
☀️
+65°F
17 August
☀️
+73°F
18 August
☀️
+74°F
19 August
☀️
+55°F
20 August
☀️
+61°F
21 August
☀️
+63°F
22 August
☀️
+67°F
23 August
☀️
+67°F
24 August
☀️
+66°F
25 August
☀️
+71°F
26 August
☀️
+75°F
27 August
☀️
+75°F
28 August
☀️
+76°F
29 August
☀️
+76°F
30 August
☀️
+74°F
31 August
☀️
+60°F
In August 2023 Johannesburg had 29 sunny days, 1 cloudy days, and 1 rainy days. The average maximum temperature was +68°F, with an absolute maximum of +75°F and a minimum of +55°F. The average humidity was 50%, with a maximum of 92% and a minimum of 17%. The average wind speed was 1 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change Over the Years
This is how Johannesburg climate has changed over the last 43 years.
The climate in Johannesburg in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+63°F) and the highest in 2019 (+76°F). The driest year was 2019 with only 0 mm of rainfall, and the wettest year was 2010 with 0 mm.
FAQ
Frequently asked questions about the weather in Johannesburg in August:
Is August a good time to visit Johannesburg?
Yes, August is a great time to go to Johannesburg, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Johannesburg.
Can you sunbathe in Johannesburg in August?
August has mild temperatures in Johannesburg. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Johannesburg rainy in August?
Johannesburg is usually dry in August. Plan your packing around outdoor activities and exploring.
Is it sunny in Johannesburg in August?
Yes, Johannesburg is sunny in August. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.
Other cities in South Africa
Check out the weather for other cities in South Africa.
For this page, we’ve looked at the typical weather in Johannesburg, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.