The best time to go to Dortan is during the late spring and summer months, from May to September, when the weather is at its most pleasant.During this period, you'll experience warm temperatures and generally clear skies, which are ideal for exploring the natural beauty of the Jura Mountains and the surrounding lakes. The longer daylight hours also allow for more extensive outdoor activities.Couples who enjoy hiking, cycling, or water sports will find these months perfect. The local trails are easily accessible, and the nearby lakes, such as Lac de Vouglans, are superb for swimming, boating, or simply relaxing by the water. The lush green landscapes are particularly appealing for those looking for a peaceful escape.For families, the summer holidays offer a fantastic opportunity to enjoy Dortan. Many local attractions, like the various adventure parks and nature centres, are fully operational.