Weather will likely play an important role when you plan your trip to Tilapa, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May, with an average temperature of 24°C, while the coldest months are January and December, with an average of 20°C. The rainiest months in Tilapa are September, August, June and July, with each month seeing an average of 233 mm of rainfall.