Planning for the weather is a good way to make your trip to Temuco relaxing and enjoyable, especially when you're splurging. The hottest months are usually January and February with an average temp of 61°F, while the coldest months are July and August with an average of 46°F. The rainiest months in Temuco are June, August, July, and May, with each month seeing an average of 8 inches of rainfall.