The best time to visit Plaisance is during the summer months, from June to August, when the weather is warm and conducive to outdoor activities.During this period, the average daily temperatures range from 20°C to 25°C (68°F to 77°F), making it ideal for exploring the Plaisance National Park and enjoying the Ottawa River. The park offers numerous trails for hiking and cycling, and the river is superb for kayaking, canoeing, and swimming. Travelers who enjoy nature and outdoor adventures will find this season particularly rewarding.The shoulder seasons of May and September also offer pleasant conditions with fewer crowds. Temperatures are milder, ranging from 15°C to 20°C (59°F to 68°F), which is still comfortable for outdoor exploration.