9
Extreme
Extreme Heat Risk in Johannesburg, South Africa
Risk Level: Extreme — Score 9/10
Risk: 9Historical: 10
Key Risk Factors
- High risk rating for Johannesburg based on ThinkHazard (Extreme heat)
- 1 events on record in proximity
- 1 event(s) in the last 12 months
- Largest recent event exposed 36,808,000 people
- History of dangerous heat waves and extreme temperatures
Peak season: June-September
Last significant event: Extreme Heat - Southern Africa (2025-01-23) — 36,808,000 people exposed
Highest Risk Cities for Extreme Heats
Johannesburg is not in the top 10 for extreme heat risk among tracked cities.
How Johannesburg Compares
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Notable Extreme Heat Events Near Johannesburg
Extreme Heat - Southern Africa
January 22, 2025 — WARNING
36,808,000 people exposed; $744,469M capital exposed
Extreme Heat Preparedness Tips
- 1.Stay hydrated — drink water regularly even if you don’t feel thirsty
- 2.Avoid outdoor activities during peak heat hours (10 AM – 4 PM)
- 3.Know the signs of heat exhaustion and heat stroke
- 4.Check on elderly neighbors and those without air conditioning
- 5.Never leave children or pets in a parked vehicle
Related Pages
Earthquake Risk in Johannesburg
Score: 1/10
Wildfire Risk in Johannesburg
Score: 9/10
Hurricane Risk in Johannesburg
Score: 3/10
Flood Risk in Johannesburg
Score: 9/10
Tornado Risk in Johannesburg
Score: 0/10
Winter Storm Risk in Johannesburg
Score: 0/10
Landslide Risk in Johannesburg
Score: 1/10
Drought Risk in Johannesburg
Score: 1/10
High Wind Risk in Johannesburg
Score: 0/10
Tsunami Risk in Johannesburg
Score: 0/10
Extreme Heat Risk in Cape Town, South Africa
Score: 5/10
Extreme Heat Risk in Nairobi, Kenya
Score: 1/10
Extreme Heat Risk in Lagos, Nigeria
Score: 3/10
Monitor Extreme Heat Risk in Real Time
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