Barometric Pressure in Johannesburg, South Africa 
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The pressure in Johannesburg, Gauteng, South Africa is predicted to quickly rise over the next few hours, with an average pressure of 832.6 hPa today, which is lower than normal.
Weather prediction: Expect more dry and cold weather and a strong breeze to gale winds
The daily total fluctuation in pressure in Johannesburg is 5.3 hPa, with a low of 829.9 hPa and a high of 835.2 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Johannesburg hour by hour and stay informed about how it will change over the next 6 hours.
The weather in Johannesburg, Gauteng, South Africa is affected by the city's location in a high-altitude valley. This creates changes in barometric pressure that bring different weather conditions.
Johannesburg's high elevation and surrounding mountains influence atmospheric pressure, causing it to vary greatly over short distances. This leads to changing weather patterns.
During summer, barometric pressure is typically low, bringing hot and rainy weather. In winter, pressure is high, resulting in cooler and drier conditions.
Johannesburg has a subtropical highland climate, which means it experiences large fluctuations in barometric pressure, leading to varied and unpredictable weather.