Johannesburg Weather in July
South Africa · Subtropical Highlands climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
July in Johannesburg sees average temperatures ranging from a low of 3.5°C (38.3°F) to a high of 17.2°C (63.0°F), with a mean of 9.8°C (49.6°F). Compared to the annual average of 16.0°C (60.8°F), this month is 6.2°C cooler than the yearly norm. Precipitation averages 0.8mm, making it approximately 53.0mm drier than the monthly average of 54.0mm. This is the driest month of the year, with just 0.8mm of precipitation. The city receives an average of 10.2 hours of sunshine per day during July, with relative humidity averaging 44.1%. Wind speeds reach an average maximum of 17.9 km/h. For travelers, this month offers a temperature experience in Johannesburg, with drier-than-average conditions compared to the rest of the year.
Johannesburg's altitude of 1,753 meters creates a subtropical highland climate with comfortable temperatures and summer rainfall. I've studied the data and found that the city experiences mild, dry winters and warm, wet summers. The best time for visiting is May to September, when the weather is dry and the city's outdoor attractions are most accessible.
July vs Adjacent Months
| Metric | June | July | August |
|---|---|---|---|
| Mean Temp | 9.8°C (49.6°F) | 9.8°C (49.6°F) | 12.9°C (55.2°F) |
| Rainfall | 12.8mm | 0.8mm | 3.0mm |
| Sunshine | 9.8 hrs | 10.2 hrs | 10.6 hrs |
| Humidity | 52.3% | 44.1% | 41.3% |
| Wind | 17.2 km/h | 17.9 km/h | 20.2 km/h |
| Rainy Days | 3.0 | 1.6 | 2.4 |
| Snowfall | 0.1 cm | 0.0 cm | 0.0 cm |
Seasonal Context
July falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Johannesburg in July, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Johannesburg in July?
The average temperature in Johannesburg during July ranges from 3.5°C (38.3°F) to 17.2°C (63.0°F), with a mean of 9.8°C (49.6°F).
How much does it rain in Johannesburg in July?
Johannesburg receives an average of 0.8mm of precipitation in July, spread across approximately 1.6 rainy days. This is the driest month of the year.
What should I pack for Johannesburg in July?
Based on July weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is July a good time to visit Johannesburg?
July is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Johannesburg
Cities with Similar July Climate (Subtropical Highlands)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -26.2°, 28.05°. Timezone: Africa/Johannesburg. Last updated: 2026-07-30.