We start with Hong Kong weather in fall (September - Mid-December), as this is firmly the best time to land in Hong Kong. During fall, humidity is low, while temperatures are warming and skies are bright. Autumn is the best time for outdoor activities, and to stroll around and enjoy the city, with summer being far to hot. Fall weather in Hong Kong is also the most predicatble, with sudden changes in the weather unlikely.
Clothes
T-Shirt and shorts weather for most of the season, although you're advised to bring a sweater for evenings, especially towards the end of the fall.
Average Temp and Rainfall
The average temperature during fall is 24C or 75F. Rainfall is very light with few rainy days, especially towards the end of the year. 20-30mm.
