Weather can make or break a road trip, so here's some data about year-round temperatures in El Cuá to help you plan yours: 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 21°C. The rainiest months in El Cuá are June, October, July and May, with each month seeing an average of 274 mm of rainfall.