January in Diepsloot averages a daily high of 28.4°C with nights around 16.2°C. Expect roughly 18 wet days totalling 134.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Diepsloot is May–September.
Based on PRETORIA IRENE, SF (20.6km), 1995–2024. 29 years of January data.