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.

Average monthly minimum and maximum temperature in Johannesburg, South Africa

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Johannesburg, South Africa

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Daily percent of sunshine

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

Average monthly percentage of sunshine in Johannesburg, South Africa

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Monthly precipitation

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

Average monthly rainfall, snow, precipitation in Johannesburg, South Africa

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Monthly rainy days

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

Average monthly rainy days in Johannesburg, South Africa

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Johannesburg, South Africa

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Weather Forecasts for Johannesburg

Thu   Mar 28
25°C | 13°C
N 14 km/h
broken clouds and no rain

broken clouds and no rain

Fri   Mar 29
28°C | 13°C
S 14 km/h
0.1 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Sat   Mar 30
25°C | 13°C
NE 18 km/h
0.6 mm
partly cloudy and slight rain

partly cloudy and slight rain

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 30°C and in winter temperatures are most days higher than 16°C. 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°C and 26°C.

Other facts from our historical weather 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 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.
  • Which is the wettest month in Johannesburg?
    December tops the wettest month list with 140 mm of rainfall.
  • Which is the driest month in Johannesburg?
    July is the driest month with 4 mm 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 have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.