Taking into account the local weather in Hualaihué is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually February and January with an average temp of 55°F, while the coldest months are July and August with an average of 45°F. The rainiest months in Hualaihué are August, June, July, and May, with each month seeing an average of 22 inches of rainfall.