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Toshima Island

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Toshima Island Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Toshima Island year round climate

  • Spring (March–May): Average 12.2–18.8°C, warm and humid climate with abundant rainfall, especially in April. Common activities: flower viewing, outdoor walks (rain gear recommended). Suggested clothing: light jacket, long-sleeved shirt and pants.
  • Summer (June–August): Average 22.1–27.6°C, hot and humid with relatively high rainfall. Common activities: swimming at the beach, sightseeing in summer resorts. Suggested clothing: light and breathable clothing, sun hat.
  • Autumn (September–November): Average 19.7–16.1°C, comfortable and pleasant climate with decreasing rainfall. Common activities: hiking, viewing autumn leaves (depending on altitude). Suggested clothing: light jacket, long-sleeved shirt and pants.
  • Winter (December–February): Average 8.3–10.6°C, cold and humid with less rainfall. Common activities: hot spring trips, indoor activities. Suggested clothing: warm jacket, sweater, scarf.

Toshima Island climatological average

Annual average temperature: approx. 17.7°C / Annual rainfall: approx. 2774 mm / Summer humidity: 70%–80% / Rainiest month: April

Toshima Island monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
8.3°C
57
February
8.7°C
206.3
March
12.2°C
274.7
April
16.1°C
351.3
May
18.8°C
271.3
June
22.1°C
335
July
26.6°C
167
August
27.6°C
299
September
25.6°C
295.7
October
19.7°C
265
November
16.1°C
196.3
December
10.6°C
55.7

Toshima Island weather for the next seven days

3/22
Sunday
Partly Cloudy
14.8°C/13°C
3/23
Monday
Moderate rain
12.3°C/11.3°C
3/24
Tuesday
Sunny
14.3°C/13.8°C
3/25
Wednesday
Heavy rain
13.8°C/13°C
3/26
Thursday
Heavy rain
12.8°C/11.6°C
3/27
Friday
Patchy rain nearby
14.8°C/13.3°C
3/28
Saturday
Overcast
16.2°C/14.9°C

Toshima Island Frequently Asked Questions and Useful Information for Travel

What is the population of Toshima Island?

Toshima Island is a remote fishing village with one of the smallest populations of all the Izu Islands with only around 330 residents.

What is Toshima Island known for?

Toshima Island is known for its rich nature with mountains and forests, a deep connection to history including its role in the Mongol invasions and a famous video game, traditional crafts and local cuisine, and its distinct cultural heritage as a gateway between Japan and the Korean Peninsula. It also offers numerous opportunities for outdoor activities like hiking and exploring ancient shrines and temples, such as the Watatsumi Shrine. The island's natural beauty is enhanced by over 89% of its area being covered in mountains and forests, making it an ideal destination for nature lovers. You can also encounter unique native flora and fauna, including deer, and a rich marine life.

Is Toshima Island worth visiting?

Toshima Island offers a unique and distinct experience compared to other places in Japan. Its natural landscapes, including dramatic coastal views and lush interiors, are truly captivating. Exploring the island provides opportunities to discover its serene beauty and experience a slower pace of life, making it a worthwhile destination for travelers seeking tranquility and natural immersion.

What are the main characteristics of Toshima Island?

Toshima Island is characterized by its stunning natural beauty, with extensive mountains and forests covering over 89% of its landmass. It maintains a strong sense of history and cultural heritage, acting as a historical gateway. The island offers a peaceful escape with opportunities for outdoor activities and a chance to connect with nature and local traditions.

What kind of nature can be found on Toshima Island?

Toshima Island boasts an abundance of nature, with over 89% of the island comprised of mountains and forests, creating a haven for wildlife. Visitors can expect to see unique native flora and fauna, including deer. The surrounding waters also teem with rich marine life, offering excellent opportunities for nature observation and appreciation.