Spring (March–May): 6.7–17.8°C on average, mild climate, increasing rainfall. Mountain areas may still have remaining snow in March-April. Common activities: Spring outings, flower viewing, hiking. Suggested clothing: Light jacket, long-sleeved shirt, comfortable athletic shoes.
Summer (June–August): 22.9–26.4°C on average, hot and humid, frequent rainfall, especially in July. Common activities: Water activities, mountain climbing, summer resort travel. Suggested clothing: Breathable clothing, light shorts, sun hat, sunscreen.
Autumn (September–November): 13.4–21.9°C on average, comfortable and pleasant climate, ideal for viewing autumn leaves. Common activities: Viewing autumn leaves, hiking, rural experiences. Suggested clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): -3.5–0.0°C on average, cold and dry, little snowfall. Common activities: Skiing, ice fishing, onsen experiences. Suggested clothing: Warm coat, thick sweater, warm pants, waterproof and windproof shoes.