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Shikoku

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Shikoku Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Shikoku year round climate

  • 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.

Shikoku climatological average

Annual average temperature: approx. 18°C / Annual rainfall: approx. 2464 mm / Summer humidity: 70%–80% / Rainiest month: August

Shikoku monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
7.2°C
33
February
8.5°C
78.7
March
12.6°C
192.7
April
17.3°C
282
May
19.9°C
336
June
23.3°C
332.7
July
27.9°C
346.7
August
29°C
417.3
September
27.1°C
203.3
October
20.7°C
89.7
November
15.4°C
115.7
December
8.4°C
36.2

Shikoku weather for the next seven days

9/20
Sunday
Overcast
29.2°C/22.6°C
9/21
Monday
Overcast
27.7°C/21.1°C
9/22
Tuesday
Sunny
28.4°C/18.5°C
9/23
Wednesday
Sunny
25.5°C/18°C
9/24
Thursday
Sunny
25.5°C/20.2°C
9/25
Friday
Partly Cloudy
25.7°C/21.5°C
9/26
Saturday
Sunny
25°C/21.2°C