I'm thinking of doing the following trip sometime this winter, HKG, BKK, USM, maybe SIN, SYD and then routing home through DOH and AUH. Between all of those places what month does it make the most sense to go? Right now I'm thinking mid to late December as it's not too cold yet in HKG, already pretty warm but not too hot in SYD and the end of monsoon season in Thailand. Does that make the most sense?