For most travellers, the best time to visit Olpe is during the late spring (May-June) and early autumn (September-October) months.These periods offer the most pleasant weather, with comfortable temperatures ideal for exploring the natural beauty of the Sauerland region without the peak summer crowds. You'll find the landscape lush in spring or showcasing beautiful colours in autumn, superb for outdoor activities like hiking and cycling around the Biggesee (Bigge Lake).The summer months of July and August are also popular, especially for families looking to enjoy water sports and swimming in the Biggesee. The weather is typically warm and sunny, though it can get quite busy, particularly on weekends and during school holidays.If you're interested in winter sports or enjoy a quieter, picturesque setting, December to March can be appealing.