If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Llanquihue: The hottest months are usually January and February with an average temp of 57°F, while the coldest months are July and August with an average of 45°F. The rainiest months in Llanquihue are June, August, July, and May, with each month seeing an average of 11 inches of rainfall.