Planning for the weather is a good way to make your trip to Vale do Bosque relaxing and enjoyable, especially when you’re splurging. The hottest months are usually January and February with an average temp of 69°F, while the coldest months are July and June with an average of 55°F. The rainiest months in Vale do Bosque are October, January, September, and December, with each month seeing an average of 8 inches of rainfall.