Last 7 days
Today
12° / 8° High / Low (°C)
98% Humidity
100% Rain probability
Rain showers Condition
~17h Rain duration
What this means
In Johannesburg on 21 Jun 2026, rain is expected: 100% chance, up to 5.3 mm forecast (source: Open-Meteo).
Moderate rain is expected today for around 17 hours — 100% probability, up to 5.3mm forecast. An umbrella is the right call.
Rain season
Johannesburg's wet season (October–April) is dominated by afternoon and evening thunderstorms — brief, intense, and often spectacular with lightning. The city at 1,700m on the Highveld has a moderate climate despite its subtropical latitude. Winter (May–September) is dry and sunny but cold at night. Annual rainfall averages 700mm; hail is a regular hazard with summer storms.
Elsewhere in South Africa