Planning for the weather is a good way to make your trip to Macau City Centre relaxing and enjoyable, especially when you're splurging. The hottest months are usually July and August, with an average temperature of 29°C, while the coldest months are January and December, with an average of 18°C. The rainiest months in Macau City Centre are August, June, July and September, with each month seeing an average of 338 mm of rainfall.