Johannesburg Weather & Climate: Best Time to Visit

In Johannesburg, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a comfortable 27°C (81°F) in January to a pleasant 20°C (68°F) in July.

Nighttime temperatures range from 16°C (61°F) in January to 4°C (39°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Johannesburg receives a reasonable amount of rainfall, with an annual precipitation of 779 mm (31 in). The seasons in Johannesburg bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 140 mm (5.5 in) of precipitation. This rainfall is distributed across 14 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 3.6 mm (0.1 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Johannesburg Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Johannesburg enjoys sunny spells year-round. July sees up to 9.5 hours of daily sunshine, perfect for a sunny trip. February, the least sunny month, still offers a generous 7.5 hours of sun despite this cloudier time of the year.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Johannesburg.

The city experiences its highest humidity in February, reaching 70%. In August, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year