You might spend a lot of your holiday inside, but if you're planning to venture beyond the casino, looking at local weather trends is a good idea. The hottest months are usually July and August, with an average temperature of 26°C, while the coldest months are January and February, with an average of 6°C. The rainiest months in Yangzhou are July, August, June and September, with each month seeing an average of 203 mm of rainfall.