The best time to visit Iwamizawa is during late spring, from May to early June, and in autumn, from late September to October.Late spring offers pleasant weather, with temperatures typically ranging from 10°C to 20°C (50°F to 68°F). This period is ideal for enjoying outdoor activities like exploring the Iwamizawa Park, known for its cherry blossoms and rose garden, without the intense heat of summer or the chill of winter. Travelers who prefer comfortable walking weather and fewer crowds will find this time particularly appealing.Autumn, from late September to October, brings cooler temperatures, usually between 5°C and 15°C (41°F and 59°F), and the spectacle of fall foliage. The surrounding natural areas and parks, such as Hokkaido Greenland, transform with vibrant colors, making it an excellent time for scenic drives and photography.