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Ikuchijima

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Ikuchijima Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Ikuchijima year round climate

  • Spring (March–May): Average 9.9–18.2°C, mild climate, increasing rainfall, occasional showers in March and April, more rainfall in May. Common activities: cycling around the island, enjoying coastal scenery. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 22.6–28.4°C, hot and humid, more rainfall, especially in July. Common activities: swimming, relaxing by the beach, enjoying the island's natural scenery. Recommended clothing: light and breathable clothing, hat, sunscreen.
  • Autumn (September–November): Average 18.4–13.0°C, comfortable and pleasant climate, less rainfall, a good season for tourism. Common activities: hiking, admiring autumn scenery, tasting local cuisine. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average 6.4–5.5°C, cold and dry, less rainfall. Common activities: indoor activities, onsen experience. Recommended clothing: warm coat, sweater, scarf, gloves.

Ikuchijima climatological average

Annual average temperature: approx. 16°C / Annual rainfall: approx. 1175 mm / Summer humidity: 70%–80% / Rainiest month: July

Ikuchijima monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.7°C
22.3
February
5.5°C
55.2
March
9.9°C
106.4
April
15.1°C
137.2
May
18.2°C
161.4
June
22.6°C
167.8
July
27.7°C
177.6
August
28.4°C
107.8
September
26.5°C
82.9
October
18.4°C
77.6
November
13°C
59
December
6.4°C
19.8

Ikuchijima weather for the next seven days

12/15
Monday
Sunny
10.5°C/3.1°C
12/16
Tuesday
Partly Cloudy
11.6°C/3.2°C
12/17
Wednesday
Patchy rain nearby
13.2°C/6.2°C
12/18
Thursday
Patchy rain nearby
11.6°C/6.5°C
12/19
Friday
Sunny
14.4°C/5.4°C
12/20
Saturday
Sunny
15.6°C/7.5°C
12/21
Sunday
Sunny
16.4°C/9.3°C

Ikuchijima Frequently Asked Questions and Useful Information for Travel

What is the best time to visit?

The best time to visit is in spring and autumn each year, when the weather is most stable and suitable for enjoying the island's beauty.

Which attractions are must-sees?

Must-visit attractions include the Shimanami Kaido Bike Trail, the island views of the Seto Inland Sea, and the various small islands along the way.