Spring (March–May): 9.1–18.1°C on average, mild but with relatively heavy rainfall, especially in April and May. Common activities: Flower viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): 22.1–27.6°C on average, hot and humid, with rainfall concentrated in June and September. Common activities: Swimming at the beach, mountain climbing for summer escapes. Recommended clothing: Light and breathable clothing, hat, sunscreen.
Autumn (September–November): 12.4–24.8°C on average, pleasant, but with heavier rainfall in September. Common activities: Maple leaf viewing, outdoor activities. Recommended clothing: Comfortable long-sleeved shirts, light jacket.
Winter (December–February): 3.9–6.0°C on average, cold and dry, with less rainfall. Common activities: Hot spring bathing, skiing (requires travel to high-altitude areas). Recommended clothing: Warm coat, scarf, hat, gloves.