The best time to visit Solingen is generally during the late spring (May to June) and early autumn (September to October) when the weather is mild and pleasant for outdoor activities.During these months, you'll find comfortable temperatures, typically ranging from 15°C to 20°C, which is ideal for exploring the city's parks, historical sites, and the surrounding countryside. The trees are either in full bloom or displaying lovely autumn colours, making for picturesque walks along the River Wupper or visits to attractions like Burg Castle. These periods also tend to have less rainfall compared to the summer months, offering more consistent good weather for your plans.For those interested in hiking or cycling, these seasons are particularly good. The trails in the Bergisches Land region, including the popular Wupperweg, are very enjoyable when the weather isn't too hot or too cold. You'll avoid the larger crowds that can sometimes appear during the peak summer holiday season, allowing for a more relaxed experience.While summer (July to August) can also be a good time with warmer temperatures, it can sometimes be quite hot and there's a higher chance of thunderstorms.