Winter in summer?

Less than a month before I leave for South Africa. Maps and web searches are helping me plan what to pack.
South Africa has a different ocean on each side. The west coast is on the Atlantic Ocean with Cape Town being the largest city. In the interior north are Johannesburg and the national capital, Pretoria. On the Indian Ocean side the cities are less developed, but the weather is lovely all year round. This is where I will be, landing in Durban in the province KwaZulu-Natal. It is very near Mozambique and Swaziland.
It’s winter there. The hot, humid coast offer fantastic winter weather with sunny, warmish days and virtually no wind or rain. The average temperatures are from the mid 40’s to low 60’s. The risk for malaria is relatively low in this area.
I have had several long conversations with Brian Konkol, the area coordinator for ELCA-M.U.D. (It is an amazing experience to speak live to someone in South Africa!) He describes our days as full of stories and real assimilation into the South African way of life. I can’t wait!