Australia, who have not won an away Test series since February 2016, have moved up to No 1 in the ICC Test rankings.
This follows their 4-0 series win over England.
The Proteas’ 2-1 series victory over India moves them from sixth to fifth, with India dropping from first to third.
New Zealand, who drew their home series with Bangladesh 1-1, are No 2.
ICC Test rankings:
1. Australia 119
2. New Zealand 117
3. India 116
4. England 101
5. South Africa 99
6. Pakistan 93
7. Sri Lanka 83
8. West Indies 75
9. Bangladesh 53
10. Zimbabwe 31