If I go for the Hong-Kong add-on, what is the weather there? Web information is unclear.

There isn't much between those two months, which will both be very pleasant. Coastal cities such as Sydney will be slightly warmer in February (low 20s Celsius v around 20 Celsius) but a little bit wetter at 102mm. Inland it will be quite a bit hotter (high 20s) and very dry in both months.

Hong Kong will be warmer in November (around 20 degrees compared with 15) and not too wet in either month.

I hope this helps you choose.

Kind regards,

Olly, your editor