The best time to visit Keltern is during the warmer months, from late spring to early autumn, specifically May to September.During this period, the weather is generally pleasant, with comfortable temperatures superb for exploring the vineyards, walking through the Black Forest, or enjoying outdoor activities. These months also offer the longest daylight hours, allowing for extended sightseeing and evenings spent at local eateries.For couples looking for a romantic escape, late August and September are particularly appealing. This is harvest season, when the vineyards are at their most active, and many local festivals celebrating wine and food take place. It's a wonderful time to experience the region's culinary delights and enjoy the picturesque landscape.Families travelling with children will find July and August ideal. The warmer weather is superb for outdoor adventures, and there are often local events and activities geared towards families.