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Climate in Johannesburg (Gauteng, South Africa)

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average percent of sunshine in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in Johannesburg, South Africa Copyright © 2023 weather-and-climate.com

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Weather Forecasts for Johannesburg (Gauteng)

Show in Fahrenheit
Wed   Oct 04
29°C | 15°C
NE 11 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
Thu   Oct 05
30°C | 14°C
NW 11 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Fri   Oct 06
30°C | 16°C
N 14 km/h
broken clouds and no rain

broken clouds and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Johannesburg in South Africa

You will always experience pleasant temperatures in Johannesburg. It has a subtropical highland climate and winter is sunny and mild. Summers are warm and get pretty wet. During summer it usually does not get any warmer than thirty degrees Celsius (86° Fahrenheit) and in winter temperatures are most days higher than 16 degrees Celsius (71° F). During the night it can cool off quite a bit.

During the months of March, April, May, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 26 degrees Celsius (79°F).

Other facts from our historical climate data:

  • Does Johannesburg have a dry season?
    Yes, the months of May, June, July and August are very dry.
  • Which is the warmest month in Johannesburg?
    January has an average maximum temperature of 27°C (80°F) and is the warmest month of the year.
  • Which is the coldest month in Johannesburg?
    The coldest month is July with an average maximum temperature of 20°C (67°F).
  • Which is the wettest month in Johannesburg?
    December tops the wettest month list with 140mm (5.5in) of rainfall.
  • Which is the driest month in Johannesburg?
    July is the driest month with 4mm (0.1in) of precipitation.
  • Which is the sunniest month in Johannesburg?
    August is the sunniest month with an average of 284 hours of sunshine.

    • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.