"In our culture the rain is a blessing," said Harry Tshabalala, a driver for the justice ministry. "Only great, great people are memorialized with it. Rain is life. This is perfect weather for us on this occasion."
People blew on vuvuzelas, the plastic horn that was widely used during the World Cup soccer tournament in 2010, and sang songs from the era of the anti-apartheid struggle decades ago.
"It is a moment of sadness celebrated by song and dance, which is what we South Africans do," said Xolisa Madywabe, CEO of a South African investment firm.
The soccer venue was also the spot where Mandela made his last public appearance at the closing ceremony of the World Cup. After the memorial, his body will lie in state for three days at the Union Buildings in Pretoria, once the seat of white power, before burial Sunday in his rural childhood village of Qunu in Eastern Cape Province.