Planning for the weather is a good way to make your trip to Valladolid relaxing and enjoyable, especially when you're splurging. The hottest months are usually May and April with an average temp of 82°F, while the coldest months are February and January with an average of 80°F. The rainiest months in Valladolid are July, September, June, and August, with each month seeing an average of 16 inches of rainfall.