Planning for the weather is an important factor for making your trip to Concepcion de Ataco a success, especially when you’re splurging. The hottest months are usually March and April with an average temp of 76°F, while the coldest months are January and December with an average of 74°F. The rainiest months in Concepcion de Ataco are September, June, May, and October, with each month seeing an average of 13 inches of rainfall.