Future trends

Population

Projection

  • Johannesburg's 2020 population is now estimated at 5,782,747 (5.8 million).

  • Projected to grow to 6.5 million by 2040

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Population growth for Johannesburg, 1975-2030

Population growth rates for Johannesburg, 1975-2030

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Climate

Biome

  • Temperate Grassland (Veldt)

  • Temperate grasslands have hot summers and cold winters. Rainfall is moderate.

  • Temperate grasslands are characterized as having grasses as the dominant vegetation. 

Temperature

Mean annual daily maximum temperature

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Risk of increased temperature

  • Increase in Heat-Related Deaths

  • Increased Energy Demand

  • Increased Water Demand 

  • Biodiversity Impacts on Disease Vectors (Health Risks)

Precipitation

Mean precipitation: historic and potential future rainfall figures

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Risk of increased precipitation

  • Urban Flood Risk - Damage to Water Supply & Sanitation Infrastructure

  • Urban Flood Risk - Damage to property loss of livelihood and personal injury

  • Urban Flood Risk - Increased Road Accidents and Traffic Congestion

  • Urban Flood Risk to Electrical & IT Infrastructure
     

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