The best time to visit Dolores is during the summer months, from June to August, or in the shoulder seasons of May and September.During these periods, the weather is generally warm and pleasant, making it ideal for outdoor activities like hiking, mountain biking, and fishing. The Dolores River, a central feature of the town, is particularly inviting for water sports in the summer. You'll find most local businesses and attractions operating at full capacity during these months.For those interested in exploring the surrounding natural beauty and historical sites, the shoulder seasons of May and September offer cooler temperatures and fewer crowds.