December in Soweto averages a daily high of 26°C with nights around 15.4°C. Expect roughly 15.3 wet days totalling 102.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Soweto is April–September.
Based on JOHANNESBURG INTERNATIONAL, SF (41.2km), 1995–2024. 20 years of December data.