The best time to visit Montreal for a holiday rental is during the vibrant summer months of June to August, with July being the most popular month. This period attracts visitors who relish the lively option filled with festivals, outdoor activities, and cultural events that the city is renowned for. Enjoying the warm weather, you'll have access to an abundance of attractions, from the beautiful Old Port to the stunning Mount Royal Park, great for sightseeing and leisurely strolls.During this peak season, temperatures typically range from 20 to 30 degrees Celsius, providing optimal conditions for outdoor adventures and dining al fresco. The city truly comes alive, with street performers and open-air markets enhancing the experience. However, keep in mind that this is also the time when tourist activity peaks, so booking your accommodation in advance is advisable to secure the best options.If you're looking for a more budget-friendly time to visit, consider coming in October. This month offers a quieter experience with the stunning autumn foliage painting the city in vibrant hues, creating a picturesque backdrop for exploration. The milder temperatures around 10 to 15 degrees Celsius make it comfortable for outdoor activities, such as visiting the Botanical Garden or enjoying a leisurely bike ride along the Lachine Canal.Ultimately, your choice of timing will depend on whether you prefer the bustling energy of summer or the serene beauty of autumn.