The best time to visit Walnut Creek is during the spring (April to June) and autumn (September to October) months when the weather is mild and pleasant, making it ideal for outdoor activities and exploring.Spring in Walnut Creek offers comfortable temperatures, typically ranging from 15°C to 25°C. This is a great time for couples to enjoy the numerous hiking and biking trails in the nearby Mount Diablo State Park, or to stroll through the downtown area and experience the outdoor dining scene without the summer heat. The local gardens and open spaces, such as the Ruth Bancroft Garden, are in full bloom, providing a colourful backdrop for a relaxing getaway.Autumn also brings agreeable weather, with temperatures similar to spring, usually between 18°C and 28°C. This season is particularly good for families due to the comfortable climate for exploring the city's parks and outdoor attractions. The farmers' market is still in full swing, offering local produce and a nice outing. Many local events and festivals also take place during these months, adding to the entertainment options.While summer (July to August) can be warm, with temperatures often exceeding 30°C, it's still a popular time to visit, especially for families looking to enjoy the public pools and water parks.