Planning for the weather is an important factor for making your trip to Cuetzalan del Progreso a success, especially when you're splurging. The hottest months are usually May and April with an average temp of 66°F, while the coldest months are January and February with an average of 58°F. The rainiest months in Cuetzalan del Progreso are September, August, June, and July, with each month seeing an average of 13 inches of rainfall.