Since I came out with my travel blog on Hongkong Disneyland and Ocean Park on a Budget (Part 1) and Part 2, I have received some questions on the best time to go to Hongkong.  Given that we come from hot, hot Philippines,  you would want to go to Hongkong at the time it is cold.  Hong Kong has four seasons: a cool and dry winter, unstable and wet spring, hot and humid summer, and warm and pleasant autumn (Wikepedia).

May to September is their rainy season.  We went before on an August and we were in Disney with our umbrellas.  It was so bad I didn't even take pictures.  Their sunny winter starts November and becomes cloudier by February (15-19 °C parang Baguio).  Their unstable and wet spring is from March to May.  Our last trip was March and we had perfect cool weather but it is true that March weather is unpredictable, see March 2014 freak storm.   July and August is their hottest period.  When we came in for a visit in July years ago, it was so hot the kids refused to stand to watch the parade.   Best time to go is late October to early December.

Another thing to consider is the Chinese Holidays.  You wouldn't want to be going to those places during a Chinese holiday since the parks will be packed, the lines for the rides exhausting and the hotel rates are at its peak.  In our last visit to Ocean Park last March,  there were a lot of people and it wasn't even a holiday,  imagine the horror of being in the park on a holiday!!!

Here is the Chinese Major Public Holiday 2014-2016 schedule from www.travelchinaguide.com

Image from www.travelchinaguide.com

Hope this helps:-)

References:  wikepedia.org and travelchinaguide.com

Travel Happy!