Spring (March–May): 9.7–18.5°C on average, mild climate. Warming begins in March, and it is quite warm by May. Moderate rainfall. Common activities: flower viewing, walking in the countryside, strolling along the beach. Suggested clothing: light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): 23.3–29.0°C on average, hot and humid. July has the most rainfall. Be mindful of sunstroke and heatstroke. Common activities: swimming, surfing, mountain climbing. Suggested clothing: light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): 17.9–25.7°C on average, pleasantly cool and comfortable, with sunny weather, ideal for outdoor activities. Common activities: maple leaf viewing, hiking, fruit picking. Suggested clothing: comfortable long-sleeved shirts, light jacket.
Winter (December–February): 4.7–6.8°C on average, cold and dry, with moderate rainfall. Common activities: onsen trips, skiing (requires travel to mountain areas). Suggested clothing: warm coat, hat, scarf, gloves.