If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Los Pargos: The hottest months are usually March and April with an average temp of 81°F, while the coldest months are December and January with an average of 78°F. The rainiest months in Los Pargos are October, September, June, and August, with each month seeing an average of 20 inches of rainfall.