If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Troncones: The hottest months are usually July and May with an average temp of 82°F, while the coldest months are February and January with an average of 77°F. The rainiest months in Troncones are September, August, June, and October, with each month seeing an average of 12 inches of rainfall.