The best time to visit Herisau for a holiday rental is during September, when the weather is pleasantly mild, and the autumn colours begin to emerge. This period offers a wonderful opportunity for outdoor enthusiasts to explore scenic hiking trails, such as those in the nearby Appenzell region, where the stunning landscapes provide a picturesque backdrop for your adventures.September boasts comfortable temperatures, typically ranging from 10 to 20 degrees Celsius, making it an ideal time for sightseeing and enjoying the charming village atmosphere. You can stroll through Herisau's quaint streets, visit local shops, and partake in outdoor activities without the summer crowds.While the peak season runs from February to April, great for winter sports enthusiasts, September offers a more tranquil experience, allowing you to appreciate the beauty of the region at a leisurely pace. Additionally, if you're seeking a more budget-friendly time to visit, consider December, when holiday festivities bring a unique charm to the area.Ultimately, your choice of when to visit Herisau may depend on your desired activities, whether it's embracing the vibrant colours of autumn or enjoying the winter wonderland.