Mainly temperate. Summer, between October and April, can be very hot, but daytime temperatures typically hover around 30ºC (86ºF). The rainy season lasts from January to March. Winter, from May to September, brings cooler weather with an average temperature of 25ºC (77ºF); early mornings and evenings may be cold and frosty, particularly in the Kalahari. The average annual rainfall decreases westwards and southwards.

Loose, natural fabrics are recommended, with wet-weather gear and warmer clothes according to the season and area visiting.