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Oirase

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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

12/29
Monday
Patchy rain nearby
42.2°F/30.4°F
12/30
Tuesday
Patchy rain nearby
43.2°F/33.2°F
12/31
Wednesday
Moderate snow
32.5°F/26.5°F
1/1
Thursday
Moderate or heavy snow showers
29.2°F/25.4°F
1/2
Friday
Sunny
32.3°F/23.7°F
1/3
Saturday
Moderate snow
32.9°F/26.2°F
1/4
Sunday
Patchy heavy snow
38.1°F/28.6°F

Oirase Frequently Asked Questions and Useful Information for Travel

How do I get to Oirase Gorge?

Oirase Gorge is most easily reached by JR bus from either Aomori or Hachinohe stations. Please note service is suspended in winter. From either station, you'll take the bus bound for Towada-ko. There are numerous bus stops, such as Yakeyama, from which the trailhead can be reached.

Is Oirase Gorge worth visiting?

The Oirase Gorge is one of the most beautiful river valleys in Japan, with vibrant and fast flowing water. The gorge extends over 14 km from the contrastively calm Lake Towada. The Oirase Gorge shows its beauty in different ways throughout the four seasons.

How long does it take to hike the Oirase Gorge?

The Oirase Gorge stretches slightly over fourteen kilometers from the Field Museum to the Nenokuchi bus stop on the lakeshore, and walking the entire distance is estimated to take about four hours in one direction.

Where can I park for Oirase Gorge?

You can find a parking lot in front of Oirase Keiryu Onsen Ski Resort (free) or the Yasumiya parking lot (charges apply), and then use the shuttle bus (charges apply).

What are the best seasons to visit Oirase Gorge?

Oirase Gorge is beautiful year-round, but it particularly shines in autumn with its vibrant fall foliage and in spring and summer with lush greenery. Winter offers a different, serene beauty with snow-covered landscapes.