Taking into account the local weather in Calbuco is an important factor for planning your visit, especially if you plan to spend your trip poolside. 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 46°F. The rainiest months in Calbuco are August, June, July, and May, with each month seeing an average of 13 inches of rainfall.