January in Pretoria 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 Pretoria is May–September.
Based on PRETORIA IRENE, SF (19.4km), 1995–2024. 29 years of January data.