The best time to go to Devizes is during the warmer months, from late spring (May) through early autumn (September), when the weather is most pleasant for exploring the town and surrounding Wiltshire countryside.During this period, you'll find the daylight hours are long, and the temperatures are generally mild, making it ideal for walking along the Kennet and Avon Canal, visiting the Devizes Castle grounds, or exploring the Market Place. Many local events and festivals also take place in the summer, offering a good opportunity to experience the local culture.For those interested in outdoor activities like cycling or walking the White Horse Trail, June, July, and August offer the most consistent good weather. The canal boat trips are also in full swing, providing a relaxed way to see the local area.If you prefer to avoid the peak summer crowds but still want decent weather, May and September are excellent choices.