Spring (March–May): Average 10.5–19°C, mild climate but with relatively high rainfall, especially frequent in April and May. Common activities: Flower viewing (such as cherry blossoms and azaleas), enjoying the outdoors, visiting historical sites. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 23.5–29°C, hot and humid with abundant rainfall, especially in July and August. Common activities: Visiting summer resorts, water activities (such as boating and swimming). Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 13.9–26.7°C, comfortable and pleasant climate with less rainfall and more sunny days. Common activities: Viewing autumn leaves, mountain climbing, hiking. Recommended clothing: Comfortable long-sleeved clothing, light jacket.
Winter (December–February): Average 4.8–6.9°C, cold and dry with less rainfall. Common activities: Skiing, onsen experience. Recommended clothing: Warm clothing, thick jacket, hat, gloves, scarf.