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Shimanami Kaido Hiroshima

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Shimanami Kaido Hiroshima Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Shimanami Kaido Hiroshima year round climate

  • Spring (March–May): Average 9.9–18.2°C, mild climate but with relatively high rainfall, especially in April and May. Common activities: Cycling along the Shimanami Kaido, island hopping. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 22.6–28.4°C, hot and humid, with the most rainfall in July. Common activities: Swimming, watersports, island exploration. Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 18.4–26.5°C, comfortable and pleasant, with sunny weather and less rainfall. Common activities: Cycling, autumn leaves viewing (in some areas), seaside strolls. Recommended clothing: Light jacket or long-sleeved shirt.
  • Winter (December–February): Average 4.7–6.4°C, cold and dry, with less rainfall. Common activities: Onsen experience, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, hat.

Shimanami Kaido Hiroshima climatological average

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

Shimanami Kaido Hiroshima 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

Shimanami Kaido Hiroshima weather for the next seven days

4/22
Wednesday
Patchy rain nearby
19.4°C/11°C
4/23
Thursday
Heavy rain
11.8°C/10°C
4/24
Friday
Partly Cloudy
18.4°C/7.2°C
4/25
Saturday
Partly Cloudy
18.5°C/7.9°C
4/26
Sunday
Moderate rain
16.6°C/12.8°C
4/27
Monday
Sunny
20.5°C/11.3°C
4/28
Tuesday
Partly Cloudy
20.5°C/12.7°C

Shimanami Kaido Hiroshima Frequently Asked Questions and Useful Information for Travel

When is the best month to visit Shimanami Kaido?

The travel season for Shimanami Kaido is suitable from April to October. The weather during this period is relatively stable, making it perfect for the cycling experience along the bike path connecting the six islands.

How long does it take to cycle Shimanami Kaido?

For experienced cyclists, the entire 70-kilometer route can be completed in about 4 hours. If you want to cycle at a relaxed pace and enjoy the scenery along the way, it is recommended to allocate 10 hours or more. You can also choose to cycle a shorter section of the route.

How to explore Shimanami Kaido?

Shimanami Kaido has dedicated cycling paths, providing a smooth and comfortable riding experience, with rental stations conveniently located for bicycle rentals. It is recommended to set aside 2-3 days for the itinerary to enjoy local specialties and visit tourist attractions along the way. It is suitable not only for cycling enthusiasts but also for family trips and nature lovers.

How many bridges are there on Shimanami Kaido?

Shimanami Kaido connects Imabari City and Onomichi City, spanning the Seto Inland Sea, and consists of 6 islands and 6 bridges. This renowned cycling route has been selected by CNN as one of the '7 Best Cycling Routes in the World'.

What are the recommended activities on Shimanami Kaido?

On Shimanami Kaido, you can fully enjoy the pleasure of cycling and admire the magnificent scenery of the Seto Inland Sea. Each island along the way has its own unique features, such as sampling local seafood, visiting special attractions, and experiencing the unique island culture.