Spring (March–May): Average 10.4–18.9°C, mild climate but with relatively high rainfall, especially in April. Common activities: Flower viewing, hiking, visiting Okayama Castle. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 23.4–29.3°C, hot and humid with abundant rainfall. Common activities: Swimming at the beach, outdoor activities (note sun protection and heatstroke prevention). Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 18.6–26.6°C, comfortable and pleasant climate with reduced rainfall. Common activities: Maple viewing, outdoor sports, enjoying local cuisine. Recommended clothing: Long-sleeved shirt, light jacket.
Winter (December–February): Average 4.9–6.6°C, cold and dry with low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm coat, hat, scarf, gloves.