For a comfortable and enjoyable visit to Three Sisters, the best time to go is during the spring (September to November) or autumn (March to May) months.
These shoulder seasons offer pleasant daytime temperatures, typically ranging from the low 20s to high 20s Celsius (70s to 80s Fahrenheit), making outdoor activities like exploring the Karoo landscape or visiting local farms very comfortable. You'll avoid the intense summer heat and the chilly winter nights, making it ideal for road trippers and those looking for a relaxed experience.
Couples often appreciate these times for the milder weather, which is great for scenic drives through the expansive Karoo or enjoying starlit evenings without extreme temperatures.