The best time to visit South Africa depends on what you want to do and see.
South Africa has a diverse climate and landscape, so the best time to visit can vary depending on your interests.

Overall, the best time to visit South Africa is during the shoulder seasons of spring
(September to November) and late summer/autumn (March to May) when the weather is still warm, and it’s not too busy.

If you want to go on a safari and see wildlife, the best time to visit is during the dry winter months from May to September. This is when the vegetation is less dense, making it easier to spot animals. The weather is also cooler during this time, making it more comfortable for outdoor activities. However you will still be able to get a good wildlife experience if you choose to come during other parts of the year.