If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in La Herradura: 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 La Herradura are October, September, June, and August, with each month seeing an average of 14 inches of rainfall.