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Omishima

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Omishima Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Omishima year round climate

  • Spring (March–May): Average 48–64°F, mild climate but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing (e.g., camellia). Recommended clothing: Light jacket, comfortable long-sleeved shirt.
  • Summer (June–August): Average 70–81°F, hot and humid with relatively high rainfall. Common activities: Beach activities, swimming, mountain climbing (pay attention to sun protection and rain protection). Recommended clothing: Light and breathable clothing, sun hat, rain gear.
  • Autumn (September–November): Average 63–77°F, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: Maple viewing, cycling, outdoor walks. Recommended clothing: Long-sleeved shirt, light jacket.
  • Winter (December–February): Average 39–41°F, cold and dry with low rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, scarf, gloves, hat.

Omishima climatological average

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

Omishima 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

Omishima weather for the next seven days

3/17
Tuesday
Sunny
52.8°F/42.2°F
3/18
Wednesday
Moderate rain
53.8°F/42.1°F
3/19
Thursday
Patchy rain nearby
59.2°F/43.5°F
3/20
Friday
Partly Cloudy
55.6°F/41.3°F
3/21
Saturday
Sunny
53.4°F/41°F
3/22
Sunday
Patchy rain nearby
57°F/41.1°F
3/23
Monday
Patchy rain nearby
60.5°F/45.5°F

Omishima Frequently Asked Questions and Useful Information for Travel

What is Omishima known for?

Omishima, the largest island along the Shimanami Kaido, offers a charming rural atmosphere. It is renowned for the ancient Oyamazumi Shrine and its captivating art museums. With a growing number of accommodations and cafes, Omishima is becoming an increasingly popular overnight destination.

What is the population of Omishima?

As of the 2020 census, the population of Omishima was 4,963, comprising 2,299 men and 2,264 women.

Is Omishima a good place for cycling?

While the direct Shimanami Kaido route across Omishima is a short 5km, it's worth exploring beyond this. The 45km 'Island Explorer' loop around the entire island is highly recommended for cyclists. The roads are well-maintained, and the scenic views are spectacular.

What kind of art can be found in Omishima?

The art scene in Omishima primarily features contemporary Japanese paintings created between the 1970s and 2000s. The island also hosts special exhibitions that benefit from collaborations with artists.

What are the main attractions on Omishima?

Omishima's main attractions include the significant Oyamazumi Shrine, a sacred site with a rich history. The island also boasts several interesting art museums showcasing local and contemporary Japanese art, making it a cultural hub for visitors.