September is the most popular time to visit Great Barr, as the summer crowds begin to dissipate while the weather remains pleasantly warm. The peak season runs from July to September, attracting holidaymakers eager to explore the area's parks and gardens, which are in full bloom during these months.During September, visitors can enjoy mild temperatures averaging between 10 to 20 degrees Celsius, making it ideal for outdoor activities such as leisurely walks in the beautiful parks or picnics by the serene lakes. The local attractions, including the stunning Walsall Arboretum, are less crowded, allowing for a more relaxed sightseeing experience.If you're looking for a more budget-friendly option, consider planning your visit in May. This month offers a lovely spring atmosphere, with blooming flowers and vibrant greenery, great for those who appreciate a quieter experience while still enjoying pleasant weather.