I want to take my wife for a special birthday in Hong kong but it's early August ...

apart from time around HK itself , Harbour , Peak , Stanley , etc, we are looking at a day in Macau , another into Shenzhen , etc .. she is concerned that it will be so hot , wet & humid that we may have a poor time & will be a very different HK holiday due to this weather .... Being Aussie's we don't mind heat but maybe this weather is too extreme for us ...??? Have you any comments please