If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in El Zapote: The hottest months are usually March and January with an average temp of 82°F, while the coldest months are January and December with an average of 80°F. The rainiest months in El Zapote are October, September, June, and August, with each month seeing an average of 14 inches of rainfall.