If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Alegria: The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are February and January, with an average of 26°C. The rainiest months in Alegria are July, October, December and June, with each month seeing an average of 269 mm of rainfall.