You'll likely spend much of your trip indoors, but if you're planning to venture beyond the casino, looking at local weather trends is a good idea. The hottest months are usually August and July, with an average temperature of 28°C, while the coldest months are January and December, with an average of 11°C. The rainiest months in Ji'an are June, May, April and March, with each month seeing an average of 245 mm of rainfall.