January in Ga-Rankuwa 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 Ga-Rankuwa is May–September.
Based on PRETORIA IRENE, SF (40.1km), 1995–2024. 29 years of January data.