The best time to go to London, Ontario, is during the summer months, from June to August, when the weather is warm and there are many outdoor activities and festivals.During this period, the average daily temperature hovers around 25°C, making it ideal for exploring the city's parks, trails, and outdoor attractions. The city truly comes alive with events such as Sunfest, a major world music festival, and various farmers' markets. For travellers who appreciate being outdoors and enjoying a lively option, summer offers the most opportunities.Spring (April to May) and autumn (September to October) are also lovely times to visit, with milder temperatures and fewer crowds. Spring brings blooming flowers and budding trees, while autumn showcases beautiful fall foliage, particularly along the Thames River. These seasons are great for couples or solo travellers who prefer a more relaxed trip, perhaps visiting museums or enjoying quieter walks.Winter (November to March) can be cold with significant snowfall, but it offers opportunities for winter sports and cosy indoor experiences.