Visiting local bars in Cotai is better when you know what the weather holds. These temperatures and rainfall averages can help you choose the best time for bar hopping. The hottest months are usually July and August with an average temp of 84°F, while the coldest months are January and December with an average of 65°F. The rainiest months in Cotai are August, June, July, and September, with each month seeing an average of 13 inches of rainfall.