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Shimanto

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Shimanto Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Shimanto year round climate

  • Spring (March–May): Average 11.1–19.3°C, mild climate but with relatively high rainfall, especially in March and April. Common activities: enjoying the scenery, flower viewing. Recommended clothing: light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 23.1–28.6°C, hot and humid with relatively high rainfall. Common activities: playing in streams, visiting summer resorts. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 18.9–25.9°C, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: viewing autumn leaves, hiking. Recommended clothing: comfortable long-sleeved shirts, jacket.
  • Winter (December–February): Average 5.9–8.3°C, cold and dry with less rainfall. Common activities: onsen experience, indoor activities. Recommended clothing: warm jacket, sweater, scarf.

Shimanto climatological average

Annual average temperature: approx. 17.2°C / Annual rainfall: approx. 1648 mm / Summer humidity: 70%–80% / Rainiest month: June

Shimanto monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
5.9°C
25
February
6.8°C
63.7
March
11.1°C
148.3
April
16.2°C
143.7
May
19.3°C
186.3
June
23.1°C
253.7
July
28.3°C
156.7
August
28.6°C
206.3
September
25.9°C
217
October
18.9°C
146.7
November
14.2°C
75.7
December
8.3°C
25.8

Shimanto weather for the next seven days

6/20
Saturday
Heavy rain
24.6°C/20.3°C
6/21
Sunday
Patchy rain nearby
27.3°C/21°C
6/22
Monday
Sunny
29.8°C/22.1°C
6/23
Tuesday
Patchy rain nearby
23.3°C/19.5°C
6/24
Wednesday
Patchy rain nearby
24.2°C/18.9°C
6/25
Thursday
Patchy rain nearby
25.3°C/20.5°C
6/26
Friday
Patchy rain nearby
26.6°C/21.9°C

Shimanto Frequently Asked Questions and Useful Information for Travel

What is special about the Shimanto River?

The Shimanto River is special due to its pristine waters, being the longest river in Shikoku at 196 kilometers. It remains largely untouched by intense urban development, making it a prime destination for nature enthusiasts seeking unspoiled beauty.

What is the population of Shimanto?

Shimanto, located in southwestern Kōchi Prefecture, Japan, had an estimated population of 32,593 in 16,635 households as of July 31, 2022. The city covers a total area of 632.29 square kilometers with a population density of 52 persons per km2.

Can you swim in the Shimanto River?

Yes, you can swim in the Shimanto River. Its exceptionally clean waters make it a popular spot for nature lovers and families. Besides swimming and wading, canoeing is another highly recommended activity on the river.

What are the best ways to experience Shimanto?

To best experience Shimanto, explore its untouched natural beauty, particularly the Shimanto River, by canoe or by simply enjoying the serene surroundings. The city offers opportunities for hiking, cycling along its scenic paths, and immersing yourself in the local culture and way of life.

What kind of activities can one enjoy in Shimanto?

In Shimanto, you can enjoy a variety of activities centered around its natural environment. Popular options include canoeing and kayaking on the pristine Shimanto River, cycling along the riverbanks, exploring traditional villages, and appreciating the clear night skies due to minimal light pollution.