The president’s spokesperson, Mac Maharaj, confirmed to the newspaper that the president would formalise his relationship with Ngema at a private traditional ceremony in Nkandla in KwaZulu-Natal.
Jacob Zuma has been married five times, and has 20 children.
He divorced home affairs minister Nkosazana Dlamini-Zuma in 1998 while another wife, Kate Zuma, committed suicide in 2000.
Ngema will be Zuma’s fourth wife. His other wives are Sizakele Khumalo, Nompumelelo Zuma and Thobeka Stacey Mabhija.
The president has a three-year-old son with Ngema. His bride-to-be has already accompanied him on a diplomatic trip to France.
Ngema hails from Umlazi township, south of Durban and has numerous qualifications including a business degree.
Zuma paid 10 cattle as lobola for Swazi Princess Sebentile Dlamini in 2002.
The Sunday Times said the president’s Nkandla homestead had been given a R64m upgrade that included six new double-storey thatch rondavels for his wives and family.