The best time to go to Tann, Hessen, Germany, is during the late spring and summer months, specifically from May to September.This period offers the most pleasant weather for exploring the Rhön Biosphere Reserve, with warmer temperatures and more sunshine, making it ideal for outdoor activities like hiking and cycling. You'll find the landscape lush and green, and local attractions are typically open with extended hours.For those keen on outdoor adventures, August is particularly good as it often has the warmest days, great for long walks or exploring the Wasserkuppe, the highest mountain in the Rhön, which is a short drive away. This time of year also sees various local festivals and markets, providing a glimpse into regional traditions.If you prefer slightly milder temperatures and fewer crowds, late May and early June or early September are excellent choices. The weather is still very agreeable for outdoor pursuits, but you can enjoy a more relaxed pace.