Taking into account the local weather in Coatepec is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually April and May with an average temp of 67°F, while the coldest months are January and February with an average of 59°F. The rainiest months in Coatepec are September, June, August, and May, with each month seeing an average of 11 inches of rainfall.