The highest day temperature in July 2025 was 67°F. The lowest night temperature was 40°F. The average values for day and night temperatures during July were 60.5°F и 49.1°F respectivly.

Almost all days in July are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in July for Johannesburg is 0.1 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 6.0 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Johannesburg in July is 10.1 hours.