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Oirase Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Oirase year round climate

  • Spring (March–May): Average 39–57°F, mild climate with moderate rainfall, suitable for hiking and flower viewing. Common activities: Hiking, flower viewing, bird watching. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 64–76°F, warm and humid, with more rainfall, especially in August. Common activities: Walking along the stream, forest bathing, photography. Recommended clothing: Breathable and sweat-wicking clothing, rain gear, sun hat.
  • Autumn (September–November): Average 57–69°F, pleasant climate, beautiful autumn leaves. Common activities: Maple leaf viewing, hiking, photography. Recommended clothing: Comfortable jacket, long-sleeved shirt, warm clothing.
  • Winter (December–February): Average -33–33°F, cold, with rain and snow. Common activities: Snow viewing (depending on snow conditions), onsen experience. Recommended clothing: Warm jacket, hat, gloves, scarf, waterproof and warm shoes.

Oirase climatological average

Annual average temperature: approx. 51.8°F / Annual rainfall: approx. 1212 mm / Summer humidity: 70%–80% / Rainiest month: August

Oirase monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
30.4°F
74.9
February
31.3°F
78.5
March
39.4°F
74.9
April
50.7°F
75.8
May
57.9°F
72.7
June
64.6°F
92.8
July
72.9°F
159.2
August
76.3°F
185.8
September
69.8°F
149.3
October
57.6°F
94.3
November
46.6°F
81.2
December
33.3°F
72.8

Oirase weather for the next seven days

3/29
Sunday
Sunny
56.3°F/37.1°F
3/30
Monday
Partly Cloudy
64.8°F/37.5°F
3/31
Tuesday
Patchy rain nearby
53.2°F/44.1°F
4/1
Wednesday
Partly Cloudy
58.3°F/39.4°F
4/2
Thursday
Overcast
54.6°F/41.6°F
4/3
Friday
Sunny
60.3°F/40.2°F
4/4
Saturday
Patchy rain nearby
54.5°F/46.5°F