The best time to go to Le Locle is during the summer months, from June to August, when the weather is mild and most outdoor activities are available.During these months, average temperatures range from 15°C to 25°C (59°F to 77°F), making it comfortable for exploring the town and surrounding Jura Mountains. This period is ideal for couples who enjoy hiking or cycling, as the trails are clear and the scenery is lush. Many local attractions, such as the underground mills of Col des Roches and the Watchmaking Museum, have extended hours, allowing for a relaxed pace of discovery.Should you prefer cooler weather and fewer crowds, the shoulder seasons of May and September also offer pleasant conditions. Temperatures are slightly lower, around 10°C to 20°C (50°F to 68°F), which is still suitable for outdoor excursions.