depends on where you stay. up country the winters are much harsher...even up in the midlands or around maritzburg things can get pretty slow when the weather turns cold...fish move deep or thick THICK into structure.
personally i love fishing winter:fishn...inanda is AWESOME during winter esp since my bro and i know all the best spots where you can easily catch 12 fish each in a brief morn session. dropoffs are the key tho!!!we'v caught fish between 18m and 5m during winter and this is in one of the warmest dams in the country. water temp now is 22degs...autumn fishing still dominates but wait till temp drops to 18 or even 17degs (for inanda anyway).
winter gives a better ave size. often delivers BIG fish and requires lil effort...just a good finder hey. brushogs

...leave it at that oh and jigs wit a culprit craw cut to size as a trailer
tight lines
BjoRn