You'll likely spend much of your trip indoors, but if you're planning to venture beyond the casino, taking a look at local weather data can help you. The hottest months are usually August and July, with an average temperature of 27°C, while the coldest months are January and December, with an average of 9°C. The rainiest months in Wuhan are June, July, May and April, with each month seeing an average of 248 mm of rainfall.