Southern Africa Regional Profile
South Africa
Sensitive Rain Seasons
- Summer rainfall (November–March): Covers most interior provinces; strongly suppressed during moderate-to-strong El Niño years.
- Winter rainfall (May–August): Southwestern Cape Mediterranean climate; ENSO teleconnection is weaker and more complex.
Primary Environmental Hazards
- • Substantial reductions in staple white and yellow maize harvest yields
- • Severe heatwaves and prolonged soil moisture depletion across the Highveld
- • Municipal water restrictions and reservoir storage drop across the Vaal dam system
- • Heightened veld fire danger across the Free State and North West provinces
Current 2026–27 El Niño Context for South Africa
As the 2026–27 El Niño gains strength, South Africa's summer grain belt must prepare for depressed rainfall probabilities and heightened evapotranspiration through early 2027.
Major Monitored River Basins in South Africa
Vaal River Basin
26.87° S, 28.12° ESupplies industrial Gauteng heartland; critical reservoir gauge at Vaal Dam.
Orange (Gariep) River
29.68° S, 20.90° ELongest river in South Africa; vital irrigation artery across arid interior.
Monitored Cities in South Africa
Select any city below for real-time temperature, 7-day rainfall forecasts, and live flood risk score:
Johannesburg
26.2° S, 28.0° ECape Town
33.9° S, 18.4° EDurban
29.9° S, 31.0° EPretoria
25.7° S, 28.2° EBloemfontein
29.1° S, 26.2° EGqeberha
34.0° S, 25.6° EPolokwane
23.9° S, 29.5° EHistorical El Niño Events in South Africa
1982–83 Event
Devastating drought crippled South African agriculture and livestock sectors.
2015–16 Event
Recorded as one of the driest summers on modern record; maize imports reached historic highs.
2023–24 Event
Mid-summer dry spells and blistering heat severely impacted early-planted grain crops.