Spring (March–May): Average 12.6–19.9°C, mild and rainy, with occasional showers. Common activities: Enjoying Shikoku's natural scenery, such as the cherry blossoms and fresh greenery spread across the mountains. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 23.3–29.0°C, hot and humid, frequent rainfall. Common activities: Swimming at the beach, enjoying outdoor activities such as hiking. Recommended clothing: Lightweight and breathable short-sleeved clothing, shorts, sunscreen, rain gear.
Autumn (September–November): Average 20.7–15.4°C, comfortable and pleasant, reduced rainfall. Common activities: Viewing autumn leaves, enjoying autumnal cuisine. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 8.4–8.5°C, cold and dry, less rainfall. Common activities: Soaking in hot springs, enjoying winter landscapes. Recommended clothing: Warm jacket, sweater, scarf, hat.