You might spend a lot of your vacation inside, 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 July and June with an average temp of 84°F, while the coldest months are January and February with an average of 75°F. The rainiest months in Mahatao are August, September, July, and October, with each month seeing an average of 14 inches of rainfall.