If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Curacautin: The hottest months are usually January and February with an average temp of 59°F, while the coldest months are July and August with an average of 44°F. The rainiest months in Curacautin are June, August, July, and May, with each month seeing an average of 12 inches of rainfall.