When can we see the autumn foilage in Japan? Autumn foliage can be seen across Japan from as early as September until December. For details, please see the following page: Autumn Leaves in Japan Related articles Please send me maps/brochures. When is peak travel season? Is it necessary for overseas visitors to show a copy of their passport upon checking in at accommodations? Will travel in Japan be difficult without Japanese language skills? When do the cherry blossoms bloom?