Spring (March–May): Average 10.5–19°C, mild and comfortable, but occasional showers. Cherry blossoms bloom from late March to early April. Common activities: Cherry blossom viewing, hiking, outings. Recommended clothing: Light jacket, long-sleeved shirt, and rain gear for rainy days.
Summer (June–August): Average 23.3–28.6°C, hot and humid, frequent rainfall, especially in June and July. Common activities: Swimming, outdoor camping (note heat and rain precautions), seeking refuge in air-conditioned indoor spaces. Recommended clothing: Light and breathable clothing, hat, sunglasses, and rain gear for rainy days.
Autumn (September–November): Average 12.9–25.7°C, comfortable temperatures. September has more rainfall; it gets cooler after October. Common activities: Maple leaf viewing, outdoor activities, cultural experiences. Recommended clothing: Comfortable long-sleeved clothing, light jacket. Note the larger temperature difference between morning and evening; keep warm.
Winter (December–February): Average 4.7–6.9°C, cold and dry, low rainfall. Common activities: Hot springs, indoor activities, skiing (requires travel to nearby areas). Recommended clothing: Warm coat, scarf, hat, gloves.