If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Yopal: The hottest months are usually February and January with an average temp of 78°F, while the coldest months are July and June with an average of 73°F. The rainiest months in Yopal are June, May, July, and April, with each month seeing an average of 11 inches of rainfall.