Johannesburg Weather in August
With daytime temperatures of 22°C (72°F) and nighttime lows of 7°C (45°F), August in Johannesburg brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in Johannesburg in August
Looking at the last 30 years, the data shows about 2 days with rain, averaging 10 mm (0.4 in) for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Johannesburg in August
August in Johannesburg is generally perfect, with days reaching 22°C (72°F) and nights settling around 7°C (45°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Johannesburg in August
With approximately 284 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April, May, June, July, August, September and October typically offer the best weather for Johannesburg.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Johannesburg's climate page.
Johannesburg Temperature in August
Min Temperature
7°C (45°F)
Max Temperature
22°C (72°F)
Chance of Rain
7%
Precipitation
10 mm (0.4 in)
Rainy days
2 days
Humidity
46%
Sunshine
284 hours
Percentage Sunshine
87%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Johannesburg typically stay consistent throughout August, with daily highs averaging around 22°C (72°F). Nights are cold, with lows typically ranging from 5°C (41°F) to 9°C (48°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Johannesburg in August
Browse day-by-day weather records for Johannesburg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Johannesburg historical weather extremes in August
Based on weather observations in Johannesburg between 1976 and 2025, these are the recorded extremes during August.
- Johannesburg recorded its highest August temperature of 30°C (86°F) on August 31, 2025.
- Nighttime temperatures dropped to -6°C (21°F) on August 21, 2003, marking the coldest August night on record.
Best Places in South Africa in August
Find out more about the weather in South Africa and which places have the best travel conditions in this month. See all of South Africa in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Johannesburg in August
For Johannesburg in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Almost no rain is expected, so no need to bring rain gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Johannesburg in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Johannesburg's climate page.
Temperature Rainfall Sunshine Humidity
See the full Johannesburg climate overview or explore weather in South Africa.
