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Shimanami Kaido Ehime

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Shimanami Kaido Ehime Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Shimanami Kaido Ehime year round climate

  • Spring (March–May): Average 48–64°F, mild climate but with relatively high rainfall; it is recommended to carry an umbrella at all times. Common activities: cycling along the Shimanami Kaido, visiting local attractions. Recommended clothing: light jacket, comfortable trousers or skirt.
  • Summer (June–August): Average 70–81°F, hot and humid with relatively high rainfall. Common activities: swimming at the beach, water sports, enjoying local seafood. Recommended clothing: light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 63–77°F, pleasant and comfortable climate with gradually decreasing rainfall. Common activities: cycling, hiking, enjoying autumn scenery. Recommended clothing: light jacket or shirt, trousers or skirt.
  • Winter (December–February): Average 39–41°F, cold and dry with the least rainfall. Common activities: onsen (hot spring) bathing, enjoying winter seascapes. Recommended clothing: warm jacket, scarf, hat, gloves.

Shimanami Kaido Ehime climatological average

Annual average temperature: approx. 59.9°F / Annual rainfall: approx. 1332 mm / Summer humidity: 70%–80% / Rainiest month: June

Shimanami Kaido Ehime monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
39.2°F
32.6
February
40.3°F
68.9
March
48.7°F
119.1
April
58.5°F
138.9
May
64°F
154.7
June
70.9°F
197
July
79.2°F
170.5
August
81.7°F
163.9
September
77.4°F
103.4
October
63.7°F
72.7
November
54.5°F
87.6
December
41.9°F
23.3

Shimanami Kaido Ehime weather for the next seven days

4/15
Wednesday
Moderate rain
59.9°F/57.8°F
4/16
Thursday
Sunny
62.1°F/50.5°F
4/17
Friday
Patchy rain nearby
60.5°F/48.3°F
4/18
Saturday
Patchy rain nearby
60.4°F/51.8°F
4/19
Sunday
Sunny
66.1°F/51.2°F
4/20
Monday
Patchy rain nearby
69.6°F/53.7°F
4/21
Tuesday
Patchy rain nearby
63.2°F/50.8°F

Shimanami Kaido Ehime Frequently Asked Questions and Useful Information for Travel

Is the Shimanami Kaido route worth cycling?

The Shimanami Kaido is definitely worth it, offering a unique cycling experience across eight islands. While it presents a rewarding challenge for regular cyclists, even those who cycle less frequently will find the 70km journey between Honshu and Shikoku a memorable adventure. Each bridge along the route boasts a distinct and impressive design.

Can I cycle the entire Shimanami Kaido in one day?

Completing the entire Shimanami Kaido in a single day is possible for very fit cyclists on road bikes, who might finish in 3 to 4 hours. However, for recreational cyclists using standard rental bikes, a more realistic pace is around 10km per hour, suggesting a full day's effort with planning. Many prefer to take two days to fully enjoy the sights.

How long does it typically take to cycle the Shimanami Kaido?

The time to cycle the Shimanami Kaido can range from one to three days, depending on your fitness, pace, and how much time you dedicate to sightseeing. Experienced cyclists on road bikes can cover the 70km route in as little as 4 hours. A more leisurely pace, including stops at cafes and attractions, can take 8 to 10 hours. Most visitors opt for a two-day itinerary to fully appreciate the scenery and attractions.

Where does the Shimanami Kaido cycling route begin and end?

The Shimanami Kaido, also known as the Nishiseto Expressway, is a 60-kilometer toll road that connects Japan's main island of Honshu to the island of Shikoku. It traverses six picturesque islands in the Seto Inland Sea.

What are the best ways to enjoy Shimanami Kaido Ehime?

To best enjoy Shimanami Kaido Ehime, consider renting an electric assist bicycle (e-bike) to make the journey smoother, especially if you plan to stop frequently. Allocate at least two days to explore the charming islands, sample local cuisine, visit unique viewpoints, and soak in the breathtaking Seto Inland Sea vistas. Taking your time allows for a more immersive and relaxing experience.