Planning for the weather is a good way to make your trip to Matrei in Osttirol relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 58°F, while the coldest months are January and December with an average of 28°F. The rainiest months in Matrei in Osttirol are August, June, May, and July, with each month seeing an average of 10 inches of rainfall.