The best time to visit Itaguassu for a vacation rental is during the peak season from November to January, with January standing out as the most popular month. This period attracts visitors eager to explore the beautiful landscapes and vibrant culture of São Paulo State, making it an ideal time for outdoor activities and local events.During these summer months, temperatures typically range from the mid-60s to the high 80s Fahrenheit, creating a warm and inviting climate for sightseeing, hiking, and enjoying the stunning natural surroundings. You can take advantage of the region's lush greenery and picturesque waterfalls, superb for adventure enthusiasts and nature lovers alike.For those looking for a more budget-friendly option, visiting in May offers a quieter experience. While it's the low season, the weather remains pleasant, and you'll have the opportunity to enjoy the beauty of Itaguassu without the crowds. This time allows for relaxed exploration and a chance to connect with the local culture at a more leisurely pace.Ultimately, your choice of when to visit Itaguassu should align with your travel preferences—whether you seek the vibrant energy of peak season or the tranquility of the shoulder months.