December in Cape Town averages a daily high of 26.8°C with nights around 15.4°C. Expect roughly 4.5 wet days totalling 16.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cape Town is September–April.
Based on CAPE TOWN INTERNATIONAL, SF (17.1km), 1995–2024. 23 years of December data.